The trailer for Halo 4 Spartan Ops's eighth episode, "Expendable," teases rough going for both Fireteam Majestic and the Infinity, which is still under attack by Promethean forces.

Spartan Ops is Halo 4's free episodic campaign that takes place six months after the end of the game. After a short hiatus, the first season returned on Jan. 21. You can watch the trailer above for "Expendable," airing Feb. 4, above.

To learn more about the season's second half, check out our interview with 343 Industries David Ellis here. Episode 7, "Invasion," aired on Jan. 28.