Time and Again

After being hit by the shockwave of a devastating planet-wide explosion, Voyager investigates. While on the surface, Janeway and Paris are accidentally 'shifted' one day into the past.

Yeah, and then the two of them are captured and realize in time that a rescue attempt by Voyager is what caused the explosion. They prevent it.

This is a superb first season episode!

"I offer you a Vulcan prayer, Mr Suder. May your

death bring you the peace you never found in

life." - Tuvok.