We teased you earlier this week, but now the full fourth episode of Halo 4: Forward Unto Dawn is online and you can watch it below! In the episode, while Corbulo Academy is being destroyed by the Covenant invasion, the surviving cadets fight bravely alongside their only hope: Master Chief.

Directed by Stewart Hendler (“H+,” Sorority Row), and written by Todd Helbing and Aaron Helbing ("Smallville," "Spartacus"), Halo 4: Forward Unto Dawn features a diverse cast of established and up-and-coming Hollywood talent, including Tom Green ("Dance Academy") as Thomas Lasky, Anna Popplewell ("The Chronicles of Narnia") as Chyler Silva, Daniel Cudmore (X2, X-Men: The Last Stand, "The Twilight Saga") as the Master Chief, Ayelet Zurer (Angels & Demons, Munich) as Mehaffey, Mike Dopud (Mission Impossible – Ghost Protocol) as General Black, Enisha Brewster (Footloose) as April Orenski, Masam Holden ("Grey’s Anatomy" Elizabethtown) as Michael "Sully" Sullivan, Osric Chau (2012) as JJ Chen, Iain Belcher ("Supernatural") as Vickers, and Kat De Lieva as Dimah.

We've include the three previous episodes below as well!