Captain Marcus Chaplin (Andre Braugher) demands confirmation of the orders only to be unceremoniously relieved of duty by the White House. XO Sam Kendal (Scott Speedman) finds himself suddenly in charge of the submarine and facing the same difficult decision. When he also refuses to fire without confirmation of the orders, the Colorado is targeted, fired upon, and hit. The submarine and its crew find themselves crippled on the ocean floor, declared rogue enemies of their own country.