When a crisis at LAX leaves dozens of airplanes unable to land, the government enlists a team of misfit geniuses to save the day.
After failing a military training mission, the team members are determined to prove themselves when an Internet infrastructure is threatened by a bomber.
When a nuclear powered Russian satellite is knocked out of orbit, the new Director of Homeland Security reunites the team; Paige and Walter confront their feelings.
An American visiting Greece to get more involved in his family's business is found beaten in a rough part of Athens; Jack struggles with having to tell his wife where their son is.