Season 1 Episode 6
Episode: "Where No One Has Gone Before"
Kosinski, a Starfleet propulsion specialist beams aboard the Enterprise accompanied by an unusual alien being who serves as his assistant, so that they may perform a series of tests on the Enterprise's warp drive. Two warp experiments are performed and both times the Enterprise is launched across unimaginable distances (read that as hundreds of millions of light years distance!) with no clear guarantees that the ship will ever make it back safely to Federation space.
In this first experiment the Enterprise blasts through two galaxies and arrives somewhere in Galaxy M33. During the experiment, Wesley Crusher witnesses something odd happening to Kosinski's assistant.
