When stopped off on a planet, Rygel leaves the rest of the group and is caught in an unbreakable orange substance while stealing treasures he discovers in a cave. When D'Argo, Crichton and Noranti go looking for him, the cave seals them in. Two huge grunts appear who have protective armor which protects them from weapons fires.
s04e01 - Crichton Kicks
s04e02 - What Was Lost (1): Sacrifice
s04e03 - What Was Lost (2): Resurrection
s04e04 - Lava's a Many Splendored Thing
s04e05 - Promises
s04e06 - Natural Election
s04e07 - John Quixote
s04e08 - I Shrink Therefore I Am
s04e09 - A Prefect Murder
s04e10 - Coup by Clam
s04e11 - Unrealized Reality (1)
s04e12 - Kansas (2)
s04e13 - Terra Firma (3)
s04e14 - Twice Shy
s04e15 - Mental as Anything
s04e16 - Bringing Home the Beacon
s04e17 - A Constellation of Doubt
s04e18 - Prayer
s04e19 - We're So Screwed (1): Fetal Attraction
s04e20 - We're So Screwed (2): Hot to Katratzi
s04e21 - We're So Screwed (3): La Bomba
s04e22 - Bad Timing
Five years ago, astronaut John Crichton attempted to use the Earth's atmosphere to propel his ship, Farscape 1, at great speeds across the solar system. He went much further though and was sucked down a wormhole to a distant part of the galaxy and into the middle of a battle. He was rescued by a group of escaping prisoners and taken aboard their living ship. As the years went by, Crichton has made enemies, powerful and dangerous enemies. On his journey to find a way back home, he freed other captives who became part of the crew on Moya.