3-11: The Q and the Grey
Q wants Captain Janeway to bare his child, with the hope of saving the Q Continuum.
3-21: Before and After
Kes finds herself as an old woman, jumping backwards through time towards non-existence.
3-04: The Swarm
The Doctor and Kes utilize a diagnostic program featuring Dr. Lewis Zimmerman when his program experiences a catastrophic malfunction, while Voyager is under attack by a swarm.