4-03: Day of Honor
During an important Klingon holiday, B’Elanna’s round of bad luck intensifies when her shuttle explodes, stranding her and Tom Paris in environmental suits.
4-07: Scientific Method
Seven discovers that Voyager's crew are subjects of secret deadly experiments.
4-11: Concerning Flight
When Voyager seeks to recover stolen supplies, Janeway receives help from the holographic version of Leonardo da Vinci, who is using The Doctor’s pirated mobile emitter.