Equinox

Another Federation starship from the delta quadrant sends an sos to Voyager.
The ship has taken heavy damage from strange creatures. Turns out the creatures are pissed off at the crew of the Equinox because they are using the aliens' dead bodies for fuel.

Janeway finds out the secret. The creatures begin to attack Voyager; the Equinox departs and blows up. The creatures cease their attacks on Voyager.

Good 2 parter!

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

death bring you the peace you never found in

life." - Tuvok.