3-24: Ménage à Trois

Upon encountering an ancient Promellian battle cruiser, the Enterprise becomes entangled in the same booby trap that disabled the Promellians.

The timeline is dramatically altered when the Enterprise’s predecessor, NCC-1701-C, crosses a temporal rift to escape a Romulan attack.

The Enterprise rushes to locate a space-bearing life-form before the Romulans.

While visiting the Enterprise, Lwaxana Troi is abducted with Riker and Deanna by a Ferengi ship.

The Borg invade Federation space, abducting Captain Picard.