Earlier this week Infinity Ward and Activision released a new gameplay preview for the next upcoming Call of Duty: Ghosts DLC pack. The content includes four new multiplayer maps, a new weapon, and a new episode for the game’s “Extinction” game mode.

Though the Call of Duty brand has become synonymous with first-person competitive console multiplayer, the franchise has come to embrace various co-op modes as well. Led by the Black Ops series’ zombie mode, players have been teaming up for years to survive and eliminate waves of computer-controlled enemies.

The co-op modes have become progressively more story-driven with each year’s new Call of Duty installment. Call of Duty: Ghosts‘ Extinction mode revolves around a mysterious and violent alien race dubbed the cryptids. The story of the aliens is set to be told over four different episodes released with Ghosts‘ DLC packs.

Today a new video preview was released for the second episode of Extinction, coming this week in the “Devestation” DLC add-on for Ghosts. Titled “Mayday,” the episode follows-up from the first episode released with the “Onslaught” DLC release for Ghosts in January. That episode saw players investigate the “Nightfall Program” research station in Alaska while battling off waves of cryptids.

The new episode will group players onto derelict research ship afloat in the South Pacific. There players will have to cooperate to take discover the secrets behind the cryptids and face-off against new cryptid types such as the 100-foot tall “Kraken.”

The “Extinction” DLC add-on on for Call of Duty: Ghosts is scheduled to launch for Xbox One and Xbox 360 consoles this week, on April 3. The content will roll out to PlayStation consoles at a later date.