Were you a little 'lost' at the beginning of Halo 5: Guardians?
It's okay, you're amongst friends.
Did the arrival of Blue Team, Master Chief's best pals, leave you a touch concerned you'd missed a key entry in the Halo franchise? Were you at a loss as to who these guys were, and why they mattered so much?
Then you need to watch Halo: The Fall of Reach - an animated feature film from SEQUENCE, the studio behind the "Terminals" shorts of Halo 4 and Halo 2: Anniversary.
The Fall of Reach reveals the events that brought Master Chief and Blue Team together, including their Spartan training and their daring mission to strike back at the Covenant during the first days of the deadly alien invasion. Check out the above clip for an insight into the Master Chief's early days of training - and the brutal realities of life as a Spartan.
Halo: The Fall of Reach is available on DVD and Blu-ray on 7 December, and on Digital Platforms now