S4E1 - Heat A
Robots competing in Heat A: Chaos 2, Atomic, Indefatigable, Medusa 2000, King B3, Attila the Drum
Sept. 22, 2000, midnight
S4E2 - Heat B
Robots competing in Heat B: Razer, Robochicken, Velocirippa, Milly-Ann Bug, Pussycat, Reptirron
Sept. 29, 2000, midnight
S4E3 - Heat C
Robots competing in Heat C: Firestorm 2, The Morgue, Scar, Bolt from the Blue, Diotoir, Ming 2
Oct. 6, 2000, midnight
S4E4 - Heat D
Robots competing in Heat D: Steg 2, Crusader 2, Cronos, Iron-Awe, Mortis, Mazakari
Oct. 13, 2000, midnight
S4E5 - Heat E
Robots competing in Heat E: 101, Dominator 2, Henry 2, Major Tom, Shadow of Napalm, Disc-O-Inferno
Oct. 27, 2000, midnight
S4E6 - Heat F
Robots competing in Heat F: Gemini, Tornado, Kater Killer, Berserk 2, Inverterbrat, The Creature
Nov. 3, 2000, midnight
S4E7 - Heat G
Robots competing in Heat G: Gravedigger, Thermidor 2, Kronic the Wedgehog, Dreadnaut XP1, Warhog, Darke Destroyer 2
Nov. 10, 2000, midnight
S4E8 - Heat H
Robots competing in Heat H: Wheely Big Cheese, Prizephita Mk2, Wheelosaurus, Killertron, Suicidal Tendencies 2, Maverick
Nov. 17, 2000, midnight
S4E9 - Heat I
Robots competing in Heat I: Killerhurtz, Destruct-A-Bubble, Splinter, Eric, Centurion, Small Torque
Nov. 24, 2000, midnight
S4E10 - Heat J
Robots competing in Heat J: Bigger Brother, Clawed Hopper, Bulldog Breed 2, Hammer & Tong, Stinger, Spikasaurus
Dec. 8, 2000, midnight
S4E11 - Heat K
Robots competing in Heat K: Evil Weevil 2, Tiberius, MouseTrap, Little Fly, Weld-Dor 2, Sump Thing
Dec. 15, 2000, midnight
S4E12 - Heat L
Robots competing in Heat L: Spawn of Scutter, Banshee, Knightmare, Vercingetorix, Plunderbird 4, Fat Boy Tin
Dec. 22, 2000, midnight
S4E13 - Heat M
Robots competing in Heat M: Wild Thing, Humphrey, The Steel Avenger, Reactor, Sir Chromalot, Scorpion
Jan. 5, 2001, midnight
S4E14 - Heat N
Robots competing in Heat N: Behemoth, Arnold, Arnold Terminegger, Rambot, Judge Shred 2, Millennium Bug, X-Terminator 2
Jan. 12, 2001, midnight
S4E15 - Heat O
Robots competing in Heat O: Panic Attack, S.M.I.D.S.Y., Overkill GTI, Saw Point, Aggrobot 2, Oblivion 2
Jan. 19, 2001, midnight
S4E16 - Heat P
Robots competing in Heat P: Hypno-Disc, The Predator, Raizer Blade, V-Max, Cerberus, Terror-Bull
Jan. 26, 2001, midnight
S4E17 - Semi Final 1
Winners of Heats A, B, C, D, E, F, G, and H compete in Semi-Final 1
Feb. 2, 2001, midnight
S4E18 - Semi Final 2
Winners of Heats I, J, K, L, M, N, O, and P compete in Semi-Final 2
Feb. 16, 2001, midnight
S4E19 - Grand Final
The Grand Final of The Fourth Wars
Feb. 23, 2001, midnight
S4E20 - Celebrity Special
This competition involves famous British celebrities taking the controls of Britain's most famous robots. Which celebrity will win?
S4E21 - Tag Team Terror
In this competition, competitior robots work as teams. One robot fights another robot, while their partner is on the side of the arena, waiting to be tagged, but most of the time, the rules go out the window!
S4E22 - Annihilator North
This is a new event containing not 1, not 2, but 6 robots all together in the arena at the same time! Every now and then a robot is eliminated. 4 battles later, there are only 2 robots left. Whoever wins the last round is the new Annihilator champion. This is carnage at its best!
S4E23 - Annihilator South
None
S4E24 - War Of Independence
None