When terrorists seize control of an airliner, an intelligence analyst accompanies a commando unit for a midair boarding operation.

U.S. Marshal Samuel Gerard and his team of Marshals are assigned to track down Sheridan, who has been accused of a double-murder.

The Enterprise is diverted to the Romulan homeworld Romulus, supposedly because they want to negotiate a peace treaty. Captain Picard and his crew discover a serious threat to the Federation once Praetor Shinzon plans to attack Ea...