Jarvis George

While working on an assignment, Gibbs is seriously injured in an explosion and taken to hospital where he recalls his painful and hidden past. The rest of the team must proceed with the investigation and put their feelings towards Gibbs's injury aside. Tony is left in charge, which may cause a bit of trouble.

The NCIS team must work on an assignment against a terrorist group without Gibbs, who is still recovering from the explosion. Gibbs struggles with memory loss and is visited by his mentor and former boss. His help is vital, especially when the team discovers that Gibbs is the only person who has information about the terrorists' plans, which he needs to remember before the terrorists attack.

When an infamous arms dealer is released from prison and bodies start piling up, Torres is forced to face the repercussions of his actions during an undercover operation he worked on years ago.

Mitchell and Carter are shifted to another dimension, making them invisible to everyone at Stargate Command.