20 episodesFirst aired 29 August 2005
The fourth season of the action-comedy series Red vs. Blue and part of The Blood Gulch Chronicles. A bomb with a bad attitude, an alien with an epic score to settle, and the usual gang of hapless soldiers are on a quest to save the universe from an ancient prophecy of destruction. The situation doesn't look too good...
E1Aug 20054m
Grif has a hard time coming to terms with the Red team's unexpected return to Blood Gulch; meanwhile back on Zanzibar, Church gets scared out of his own body.
E2Sept 20054m
Tex, Tucker, and Church search for the big thing while Sarge tries a new strategy to get Grif down from the ledge.
E3Sept 20056m
Simmons is frustrated that Sarge won't believe he saw a tank while the Blues send in bait to lure the alien into a trap.
E4Sept 20055m
Donut finds competition in his attempt to become the Reds new second in command while Caboose introduces the blues to the Alien.
E5Sept 20056m
The Blues continue to try translating what the alien is saying, while the Reds continue Sarge's right-hand-man contest.
E6Oct 20055m
Tucker tries to teach the Alien how to speak English while Donut keeps Simmons away from the Red Base.
E7Oct 20055m
The Blues find someone to translate the Alien language while Simmons mounts an assault on the Red Base.
E8Oct 20054m
Tucker, Caboose, Andy and the Alien prepare for a dangerous quest while Grif tries to talk Simmons out of killing all the Reds.
E9Nov 20054m
Simmons takes Grif hostage while Church has a heart to heart with Tucker about his dangerous quest.
E10Nov 20054m
Donut and Sarge investigate Grif’s kidnapping, while the Quest team arrives at the burning planes to face a demon.
E11Dec 20055m
Sarge’s rescue attempt goes awry while the Quest team uses Tucker as bait.
E12Dec 20054m
The Quest team arrives at the freezing planes while Church negotiates a surrender with Donut.
E13Dec 20054m
Tex storms the Freezing Planes base while Donut explains to Sarge and Grif how he led the greatest military operation ever to free them.
E14Jan 20065m
Sheila gets mad over Church’s new fleet while a new Spartan creates an obstacle for the Quest.
E15Jan 20064m
Simmons comes back to the Red Base while the Quest team return from a disastrous encounter.
E16Feb 20066m
At the Blue Base, Tucker becomes ill and while at the Red Base, Simmons meets resistance from Donut and Grif.
E17Mar 20067m
Simmons attempts to report the Blue's plans, while O'Malley, Doc, and Lopez return to the gulch.
E18Mar 20066m
Sarge, Simmons, and Grif race towards the Blue Base, while Donut attempts to communicate in Spanish.
E19Mar 20068m
Doc examines Tucker and the Reds discuss the appropriateness of hand to hand combat, sniping, and nuclear warfare.
E20Apr 20067m
Doc and Church discuss Tucker's pregnancy, while Andy plays Command's message for the Reds.