In an unknown location, Washington is heard creating a journal entry. Admitting that it has been a while since doing one, Wash decides to get up to speed: he recalls the corruption of Project Freelancer, its demise, his job as a Recovery agent, and Project Freelancer's misuse of the Reds and Blues as cannon fodder for their Freelancer agents. The only people Wash could trust was the Reds and Blues and together, they succeeded in bringing down Project Freelancer and the Director once and for all. Wash then mentions the fact that they became shipwrecked while on their way home, and fears that if help doesn't come soon, someone else may find them. Wash talks to the group - Comm tower S11 Finishing his entry, Wash hears the tank fire and sees that Sarge and Simmons are using it on their own base, with Grif still inside. Wash asks why Sarge has the tank, but quickly realizes Caboose gave it to the Reds.

Wash and Caboose leave for Blue base to confront Tucker. Meanwhile, the Reds discuss a dilemma about their base.

Sarge lays down a few ground rules regarding his personal space, while Wash comforts a sad Caboose.

While depressed over the departure of his best friend, Caboose comes across something mysterious.

As Washington and Tucker begin work on the communications tower, Sarge activates Red Team's newest addition.

The Reds and Blues work together to repair the communications tower. Afterwards, Caboose introduces his new friend.

The Blues get acquainted with Caboose's robotic pet Mantis, Freckles. Meanwhile, Sarge orders Grif and Simmons to recon on Blue Team.

Grif and Simmons execute their reconnaissance on Blue team.

Sarge overreacts over Simmons' departure and prepares a counterattack. Meanwhile, Washington and Tucker butt heads.

Tensions arise between the Red and Blue teams.

While Caboose gets accustomed with his new position, the Reds divulge a plan to eliminate Freckles.

Sarge, Grif, and Doc discover some interesting things inside the ship.

Simmons brings a source of social media to the canyon, while Lopez and Lopez 2.0 are given important information.

Donut cleans the Red base, while Wash and Tucker have a discussion over leadership.

Wash gives Caboose a present, while the Reds complete their construction on their Mantis.

Felix, the orange soldier, tells the Reds and Blues about where they landed and why it was so important for him to find them.

The Reds and Blues begin fortifying their defenses for an imminent attack. Meanwhile, Lopez 2.0 gets a dastardly plan.

The Reds and Blues engage in a fierce battle against Locus and the Federal Army.

Tucker, Caboose, Grif, and Simmons join the New Republic army in order to rescue their friends.

The infiltration of a mining facility goes haywire for the New Republic.

Felix and Tucker take a group of Republic soldiers to blow up a Federal Army outpost.

Kimball makes a deal with the Reds and Blues to assemble a small team in five days to go rescue their friends before they are moved to the capital.

The Reds and Blues run into problems while forming their elite rescue team.

The Reds and Blues begin their training with their chosen recruits.

Kimball talks to Tucker about Felix's past and his connection to Locus.

The Reds and Blues begin their rescue mission ahead of schedule without the recruits.

The Red and Blue captains arrive at the compound and attempt to break in.

Weeks before their encounter with their friends, Wash, Sarge, Donut, and Lopez discover the Federal Army of Chorus' true intentions.

Together once again, the Reds and Blues learn the truth about Chorus' conflicting factions and come up with a solution to end the war. However, they are unexpectedly attacked.

Weeks before rescuing their friends, Carolina and Epsilon infiltrate an F.A.C. Munitions Plant in order to obtain data from a team of mercenaries.

Now reunited, Carolina and Epsilon inform the Blood Gulch Crew on the Mercenary team and the group plan out their next move.

The Blood Gulch Crew further analyze the manufactured alien tech.

The Blood Gulch Crew search the two halves of the UNSC ship at crash sites Bravo and Alpha.

After nearly being ambushed by a space pirate, the Blood Gulch Crew interrogate the enemy.

The Federal Army of Chorus and the New Republic prepare for their upcoming battle.

The Reds and Blues ponder on whether to accept Felix and Locus' deal. Meanwhile, the New Republic infiltrate Armonia.

The Blood Gulch Crew take on the Space Pirates, while the Federal Army and the New Republic battle it out.

After having the Feds and Rebels come to a truce, the Blood Gulch Crew uncover the secret behind the identity of Control.

The space pirates raid the UNSC Tartarus for prisoners to recruit into their ranks

Grif searches for Kimball in the crowded city of Armonia, showing off just how much life has changed on Chorus since the civil war ended.

The Blood Gulch Crew seek help from Dr. Grey in order to gain more information on the alien temple.

Tucker, Sarge, Caboose, and Doctor Grey investigate the alien artifact left by the Space Pirates.

The Reds and Blues plan their next move after the activation of the alien temple.

The Blood Gulch Crew, Rebels and Feds head out on their missions, while the Chairman has a talk with Locus and Felix.

The space pirates take a deeper look into the jungle temple, while Sharkface creates a new look for himself.

Carolina, Dr. Grey, and the Blues discover secrets at the energy portal.

The Away Team has questions, Santa has answers… and a ridiculous name.

Both squads attempt to find a way out of their current situations.

Carolina battles Sharkface while the assault team execute their getaway.

Felix pursues a fleeing Doyle in order to obtain the key.