Star Trek: The Next Generation (1987)

Episode Overview

Stardate: 46915.2. Riker uncovers a startling truth: eight years prior, during a transport mishap, an identical clone of himself was formed as he passed through a planet's crust on his way back to the ship. This clone, who goes by Thomas Riker, has been living on the planet in obscurity for nearly a decade and harbors lingering feelings for Troi.