The discovery of Prince’s true plan pushes Chuck to undertake his most dangerous gambit yet, one final all-in gamble that will see the loser sent to prison.

Louise befriends a house spider and hides it in her room after Linda and Bob tell her to remove it from the apartment. Meanwhile, Bob tries to make a friend outside of the people that come to the restaurant.

The USS Pennsylvania runs weapons drills during peacetime in the Gulf of Mexico.

A man dies; something bad is going on.

Penetrating the skull is the only way to stop the enemy.

Advancing quickly; sticking together; firing is not allowed unless absolutely necessary.

Riley does what needs doing.

The new mission is to survive.

Follows the USS Pennsylvania as Riley and crew survive the apocalypse in the submarine.

Rountree and his younger sister are pulled over by police and treated harshly in a clear case of racial profiling. Also, NCIS investigates the death of a Navy photographer who was assigned to document the building of a new weapons station.

Lisa meets the son of the late musician Bleeding Gums Murphy - and attempts to improve his life.

Maggie prepares to defend Hilltop and the people of Riverbend against Hornsby.