Red vs. Blue - Season 5 - Eps 10: The Nesting Theory
Grif and Simmons decide to enter the cave. Meanwhile, Tex is firing at the Blues to try and deduce who is being possessed by O'Malley. Church starts to suspect that Sheila is possessed by O'Malley, causing her malfunction. Tex notices Sister, and reacts jealously.
About Red vs. Blue

Title: Red vs. Blue
First Air Date: 2003-04-01
Last Air Date: 2021-12-29
Status: Canceled
Rating: 7.555/10 (from 73 votes)
Language: EN
Seasons: 20
Total Episodes: 351
Network: YouTube Rooster Teeth
Genres: Animation, Comedy, Sci-Fi & Fantasy
Production Companies: Rooster Teeth Productions
Synopsis
In the distant future, two groups of soldiers battle for control of the least desirable piece of real estate in the known universe: a box canyon in the middle of nowhere.
Cast

Matt Hullum
Sarge

Jason Saldaña
Pvt. Lavernius Tucker

Gustavo Sorola
Pvt. Dick Simmons

Burnie Burns
Pvt. Leonard Church / Lopez the Heavy / Epsilon

Joel Heyman
Pvt. Micheal J. Caboose

Geoff Ramsey
Pvt. Dexter Grif

Dan Godwin
Pvt. Franklin Delano Donut