A squad of zombie-hunting all-stars drops into an abandoned city on a rescue mission.

The Entity's alien army has successfully indoctrinated humanity across the globe. It's up to 54 scrappy lads and lasses to take up arms, and take back Earth (now with zambies)

Timestamps:
0:00 Intro
0:22 Destroy the psionic network transmitter
2:34 Gather survivors from abandoned city
11:13 Rescue civilians