Stardate 41263.1 A Starfleet Officer thinks he can improve the Enterprise's engines. However, it is his mysterious alien assistant that really holds the key to the miraculous distances the Enterprise is able to achieve. Then It becomes up to Wesley Crusher to get the starship back to their own galaxy, after the alien, now known as the "Traveler", falls ill.

Scrooge seeks to find out why his ships are disappearing in the Bermuda Triangle.

A jewel thief with diplomatic immunity kills Mac's friend. But there are more people involved in the crime - and Mac can't be sure who's on his side.

ALF becomes the star attraction at the Tanners' Halloween party.