
Riley is serving as a weapons officer aboard the USS Pennsylvania near the Gulf of Mexico when a mysterious outbreak forces the crew to strategize a way off the sub before it becomes their tomb, in this prequel to Fear the Walking Dead.
Season 1 — 6 episodes

Part 1
It’s peacetime in the Gulf of Mexico, so why is the USS Pennsylvania running weapons drills?

Part 2
A man’s dead. Something’s going on. Something bad.

Part 3
Penetrate the skull. It’s the only way to stop them.

Part 4
Advance quickly. Stick together. Do not fire unless you absolutely must.

Part 5
Riley does what needs doing.

Part 6
Riley and the remaining USS survivors have one mission: Survive.