I'm loving the series so far, having watched each episode several times. While waiting eagerly for part five, I thought a summary would be useful:

[edit: I'll update with each new episode]

Ballistics, Engineering, Astrophysics Space Team

Part 1

• Launch 1, MunShot
  • Pilot: Jebediah
  • 4:35 Build: 7 solid boosters for 1st stage, 7 liquid-fuel engines with "asparagus" staging for 2nd, capsule on top of 2nd
  • 15:30 Launch: unstable 1st stage, faulty 2nd staging, failure to reach orbit, parachute failure, capsule destroyed, pilot survived but not recovered

• Launch 2, MunShot2
  • Pilot: Bill
  • 21:34 Build: struts added, 2nd staging order fixed, fins added, 3rd stage created for capsule
  • 24:16 Launch: strut failure, rocket break-up in lower atmosphere, safe capsule recovery

• Launch 3, MunShot2.5
  • Pilot: Bob
  • 25:30 Build: upper fins removed, struts adjusted, lights added
  • 26:39 Launch: strut failure, mission abandoned, reverted

• Launch 4, MunShot2.5
  • Pilot: Valentina
  • 28:22 Build: struts adjusted
  • 28:38 Launch: uncontrolled spin while attempting orbit, safe capsule recovery

• Launch 5, MunShot3.0
  • Pilot: Bob
  • 34:12 Build: fuel line repaired
  • 34:47 Launch: Kerbin orbit, Mun orbit, loss of control while landing on Mun, pilot lost

Part 2

• Launch 6, MunShot4
  • Pilot: Bill
  • 4:20 Build: struts adjusted, 3 boosters removed from 1st stage, 6 engines removed from 2nd stage
  • 8:50 Launch: failure to reach orbit, parachute failure, pilot lost, reverted

• Launch 7, MunShot5
  • Pilot: Bill
  • 16:07 Build: 2nd stage engine replaced with a larger engine
  • 21:56 Launch: staging failure, reverted

• Launch 8, MunShot5
  • Pilot: Valentina
  • 23:47 Build: staging adjusted
  • 24:35 Launch: Kerbin orbit, Mun orbit, insufficient fuel for safe landing, pilot lost

• Launch 9, MunShot6
  • Pilot: Bill
  • 42:38 Build: 3rd stage added, landing gear, lights, and RCS moved to 3rd stage
  • 50:37 Launch: somersault into 2nd stage, insufficient fuel to achieve orbit, parachute not deployed, pilot lost

• Launch 10, MunShot New Hope
  • Pilot: Bob
  • 56:07 Build: fuel line repaired
  • 57:11 Launch: somersault into 2nd stage, high-inclination low-periapse Kerbin orbit, rocket destroyed by atmosphere, pilot lost

• Launch 11, MunShot Next Hope
  • Pilot: Doodny
  • 1:04:00 Build: Kerbals recruited
  • 1:05:48 Launch: accidental staging, high-inclination Kerbin orbit, insufficient fuel to reach Mun orbit, rocket stuck in orbit

Part 3

• Launch 12, MunShot More Ox
  • Pilot: Bearee
  • 2:27 Build: aircraft fuselage on 3rd stage replaced with rocket fuel tank
  • 7:08 Launch: low-periapse Kerbin orbit, direct approach to Mun, insufficient fuel for safe landing, pilot lost
• Launch 13, MunShot More Ox
  • Pilot: Bill
  • 22:50 Build: 3 boosters added to 1st stage
  • 26:30 Launch: accidental staging, mission abandoned, reverted
• Launch 14, MunShot More Ox
  • Pilot: Bill
  • 28:53 Launch: polar Kerbin orbit, Mun orbit, surface landing, "BILL WAS HERE" flag planted, insufficient fuel to achieve Mun escape, surface impact, capsule lost, pilot survived impact, pilot killed by high-speed EVA

Part 4

• Launch 15, MunShot Check Fuel Line
  • Pilot: Bob
  • 3:30 Build: MunShot Next Hope loaded, multicolored lights added, ladder added, top parachute replaced by two radial, in-line reaction wheel added, fixed fins replaced by rotating fins, nose cone added
  • 17:07 Launch: elliptical Kerbin orbit, insufficient fuel to reach Mun orbit, rocket stuck in orbit, failed attempts to deorbit launch 11 and launch 15 rockets with monopropellant
• Launch 16, MunShot Check Fuel Line
  • Pilot: Bill
  • 35:06 Build: aircraft fuselage on 3rd stage replaced with rocket fuel tank, larger landing gear added, 3 boosters added to 1st stage
  • 40:27 Launch: incorrect staging, mission abandoned, reverted
• Launch 17, MunShot Check Fuel Line
  • Pilot: Bill
  • 40:55 Launch: Kerbin orbit, Mun orbit, surface landing, "Mun Butte" flag planted, Mun escape, insufficient fuel to deorbit Kerbin, rocket stuck in orbit

Part 5

• Launch 18, Kerbal's Ark
  • Pilot: Valentina
  • 1:22 Build: rescue vehicle started, shuttle cockpit for 3rd stage, liquid fuel 2nd stage, ladders and parachutes on 3rd stage, drogue parachute on nose, 6 radial liquid-fuel rocket for 1st stage, rotating fins on 1st stage
  • 19:09 Launch: unstable 1st stage, failure to reach orbit, rocket destroyed by atmosphere, pilot lost
• Launch 19, Kerbal's Ark
  • Pilot: Bearee
  • 24:20 Build: larger radial rockets for 1st stage, RCS added to 2nd stage, struts added to radial rockets
  • 27:27 Launch: too many Kerbals in cockpit, launch abandoned, reverted
• Launch 20, Kerbal's Ark
  • Pilot: Bearee
  • 28:25 Build: surplus Kerbals ejected
  • 28:37 Launch: launch abandoned, reverted
• Launch 21, Kerbal's Ark
  • Pilot: Bearee
  • 28:50 Build: rotating fins on 1st stage
  • 30:09 Launch: loss of control, rocket break-up in lower atmosphere, parachutes deployed, safe landing, craft not recovered
• Launch 22, Kerbal's Ark
  • Pilot: Dinne
  • 32:46 Build: surplus Kerbals ejected
  • 33:24 Launch: polar Kerbin orbit, attempted rendevous with Launch 11 rocket, high-speed fly-by, insufficient fuel for plane alignment, parachutes deployed, safe landing, craft not recovered

Part 6

• Launch 23, WTHAWD 1.0
  • Pilot: Valentina
  • 2:20 Build: MunShot Final (Needs More Fuel) loaded, 1st stage removed, 2nd stage repurposed as new 1st stage with engines added to all tanks, new stage added between lander and 1st, staged radial engines added to lander stage
  • 30:35 Launch: throttle half closed, loss of control, forced staging, lander engines tested, drogue parachutes insufficient, ocean impact, pilot lost, reverted
• Launch 24, WTHAWD 1.0
  • Pilot: Valentina
  • 34:06 Build: new fuel tank added for lander radial stage
  • 38:40 Launch: faulty fuel line, reverted
• Launch 25, WTHAWD 1.0
  • Pilot: Valentina
  • 39:06 Build: redundant fuel lines removed
  • 39:28 Launch: loss of control, forced staging, lander engines tested, drogue parachutes insufficient, ocean impact, pilot lost, reverted
• Launch 26, WTHAWD 1.0
  • Pilot: Valentina
  • 42:17 Build: drogue parachutes replaced by standard parachute, two monopropellant tanks added to existing two, radial engines replaced by four smaller engines on 3rd stage tank
  • 47:08 Launch: loss of control, reverted
• Launch 27, WTHAWD 1.0
  • Pilot: Valentina
  • 48:42 Launch: loss of control, reverted
• Launch 28, WTHAWD 1.0
  • Pilot: Valentina
  • 49:59 Build: fins added to middle
  • 51:57 Launch: loss of control, reverted
• Launch 29, WTHAWD 1.0
  • Pilot: Valentina
  • 53:26 Launch: failure to reach orbit, parachute deployed, safe landing, craft not recovered
• Launch 30, The Luda Lander
  • Pilot: Roton
  • 1:00:14 Build: nuclear power generator replaced by solar panels, tank sizes tripled on 1st stage
  • 1:07:01 Launch: unstable flight, reverted
• Launch 32, The Luda Lander
  • Pilot: Roton
  • 1:14:54 Build: 1st stage tanks reduced to 6 from 18, radial solid boosters added, reinforced with struts

Part 7

• Launch 32, The Luda Lander (cont'd)
  • Pilot: Roton
  • 1:14 Launch: loss of control, reverted

• Launch 33, The Luda Lander
  • Pilot: Roton
  • 2:06 Build: struts fixed, delta wings added
  • 4:20 Launch: staging sequence incorrect, direct ascent, reverted

• Launch 34, The Luda Lander
  • Pilot: Roton
  • 8:04 Launch: attempted turn, southern ballistic trajectory, eastern burn into Kerbin orbit, plane change, wait 23 days in orbit for periapsis alignment, insufficient fuel to reach Mun, return to Kerbin, safe landing, craft not recovered

• Launch 35, The Luda Lander
  • Pilot: Eridolin
  • 36:50 Build: struts connected from boosters to top stage
  • 38:34 Launch: bad orbit, reverted

• Launch 36, The Luda Lander
  • Pilot: Eridolin
  • 44:03 Launch: low Kerbin orbit, plane change, wait 4 days in orbit for periapsis alignment, Mun orbit, lights blocked by tanks, sideways landing in crater, ship righted with RCS, "Sideways" flag planted, insufficient fuel to achieve Mun escape, surface impact, pilot lost

Part 8

• Launch 37, The Luda Lander
  • Pilot: Jack
  • 3:02 Build: removed external equipment from top stage, added heat shield, staging adjusted, length of rocket strutted, lighter lander legs added, one monopropellant tank added, two smaller solar panels added, two lights added
  • 21:45 Launch: Kerbin orbit, collision course with Mun, loss of electricity in shadow of Mun, surface landing in the dark, "Jack Came Tumbling Down" flag planted, launch to Mun orbit, escape to Kerbin orbit, periapsis dropped to collision course, burn-up in upper atmosphere, pilot lost

• Launch 38, The Luda Lander
  • Pilot: Eridolin
  • 1:15:02 Launch: pause from 1:17:52 to 1:20:35 to mentally recover, Kerbin orbit, Mun fly-by changed to collision course on light side of Mun, surface landing, "Sorry Jack" flag planted, launch to Mun orbit, escape to Kerbin collision course, accidental time warp, burn-up in upper atmosphere, pilot lost, program crashed

Part 9

• Launch 39, The Luda Lander
  • Pilot: Haldrin
  • 8:17 Build: solar panel added to the capsule, lights changed to purple
  • 18:22 Launch: Kerbin orbit, collision course with Mun, surface landing in the dark on the edge of a crater, "Haldrin's Abyss" flag planted, launch to high-inclination Mun orbit, slingshot to Kerbin escape trajectory, emergency retrograde burn for Kerbin capture, periapsis dropped to within atmosphere for aerobraking, last stage separated when heat effects appear, slow aerobraking descent, safe splashdown, pilot survived, recovery of Launch 1, 21, 22, 29, 34, 39
• Launch 40, The Luda Lander
  • Pilot: Jebediah
  • 2:28:35 Build: lower two stages removed, two "Mammoth" engines and tanks added to the sides
  • 2:30:26 Launch: ballistic trajectory, tumble, reverted

28:53 Launch: polar Kerbin orbit, Mun orbit, surface landing, "BILL WAS HERE" flag planted, insufficient fuel to achieve Mun escape, surface impact, capsule lost, pilot survived impact, pilot killed by high-speed EVA

Just reading this sentence makes me giggle.

This is really helpful!! Good work!

This is very important data for Project B.E.A.S.T.

Looking forward to the Episode 5 log

Love this. You're doing great work.

Thank you for doing this. Honestly the best video series in years by the crew. I'm addicted and hope more episodes come frequently.

This perfectly captures how amusing the whole saga has been. "Accidental staging", "killed by high speed EVA", "too many Kerbals in cockpit". Great work.

Amazing work @aethelred. Really appreciate the detail and tone of these summaries especially for poor Bill!

Nice timeline! Now i have a good reference for when i want to go back re-experience a specific moment.

Any crack accountants in here that can tally up how much money they spent over the entire series?