Season 2

Episode 20 introduces the character Doc to the Blood Gulch, and to the Blues.

The Blues fend off an attack from the Reds, the Reds fend off themselves.

The Blues surrender and sacrifice Doc, the Reds sacrifice Grif’s self-esteem.

Doc distances himself from Grif, the Blues make a discovery.

The Blues almost accidentally toggle Sarge to death.

Doc makes an impression on Sarge while the Blues try to fix Church's switch.

When the Reds try to make a deal with the Blues, one soldier gets stuck in the middle.

Donut gets to know the other members of Red Team better, while Church makes a strategic error - listening to Caboose.

The Blues try to control Lopez, while the Reds set out looking for a little payback.

In the series finale of Red vs. Blue, Grif and Donut mourn their loss.

Sparks fly when Lopez and Sheila meet, but the unexpected return of a former ally changes everything.

Tex tries to explain her mysterious return, while Sarge looks for a volunteer for a special project.

Church and Tex venture into Caboose's mind to search for O'Malley.

Church and Tex continue their search while Tucker, Sheila and Lopez approach Red Base.

Lopez serenades the Red Team to get them to shut off their radios and O'Malley infects Doc.

Doc discovers a strange vehicle and Grif has an operation.

Simmons and Grif bicker over surgery while Sarge discloses that Lopez is hiding secret plans.

Grif and Donut undertake a secret spy mission and Donut overhears Doc/O'Malley making plans.

Blue Team interrogates Donut then Church possesses him in an attempt to trick Sarge.

In the final episode of season two, the battle for Blood Gulch moves beyond just Red versus Blue.