Apocalypse is the fourth and final DLC installment for Call of Duty: Black Ops 2, landing on August 27 as a timed exclusive on Xbox 360. Apocalypse includes four multiplayer maps and a new Zombies mode, Origins, which Treyarch teased in a video yesterday.

Origins stars the four original heroes from the first-ever Zombies map - Tank, Nikolai, Takeo, and Rictofen - as they gallivant in a dieselpunk, World War I-era France that's been overrun with the undead. As the title suggests, Origins will explore the beginning of the Zombies storyline and features "a period-specific arsenal," including Wonder Weapons that harness supernatural powers. Just like the ones Pershing used.

The mech we spotted in yesterday's Origins video is a 1,000 foot robot that players must evade, along with all the zombie hordes.

The multiplayer maps in Apocalypse are Pod, a failed utopian community from the 70s, Frost, a wintry European city, Takeoff, a small launch site in the middle of the Pacific Ocean, and Dig, and adaptation of the Courtyard map from Call of Duty: World at War.