Carter is overwhelmed by patients from a rock concert riot. Benton’s former girlfriend is killed in a car accident. Newly promoted to chief resident, Chen panics and misdiagnoses a patient….

Riker is abducted by a xenophobic race of aliens during a first contact mission. They believe the Enterprise is a scout for an invasion.

Stardate: 46519.1. Troi is abducted and surgically altered by the Romulans as part of a ploy to smuggle intelligence operatives into the Federation.

Stardate: 42609.1. A strange power source disables the Enterprise’s computer systems, damages Data’s programming and leaves the ship and crew vulnerable to a Romulan attack.

A battery is stolen by a criminal calling himself the Mirror Master. He soon steals a crystal from Star Labs. Tina will get fired if they can’t recover the crystal….