When a 14-year-old foils a home invasion, Gibbs suspects the teenager is withholding pertinent details. Also, director Vance and senior FBI agent Fornell travel to London as part of the ongoing escaped British spy case.
Janeway orders Seven of Nine to assist an alien arms dealer while he's on board Voyager, but the two can't seem to get along.
After a father is gunned down on the freeway, Don and his team must determine if it was a random act or the work of a serial killer.
Ally and John take the case of a wrongful death that Richard thinks will profit the firm; Ally and Glenn discuss their feelings for each other.
A new terrorist organisation demands the release of Sark in exchange for two scientists they have kidnapped; Vaughn wrestles with the decision to return to the CIA even though it will mean working with Sydney.