Crichton correctly predicts the appearance of a wormhole near Moya, but the Leviathan is then almost immediately ensnared by a giant space plant that shorts out her systems and starts eating her skin.

D'Argo insists on a quick fire plan to blast the plant off Moya's hull with Lo'La's cannon. At the same time, Noranti uses her unorthodox methods to study the plant, revealing an error in D'Argo's tactics. Her warning comes too late, as D'Argo's ship fires upon the plant, sending it inside Moya and crippling her even further.

As the crew hunts down the plant on the inside, Aeryn reveals to Chiana not only her pregnancy, but the possibility that Crichton may not be the father. It isn't long before word spreads.

Pilot becomes riddled with the plant and slips into a coma, but a breakthrough comes when it is discovered that the material in Scorpy's cooling rods repels the plant. A mixture of the blue herbicide is made up, and Crichton and Aeryn brave the giant fans of the Atmosphere Scrubber Chamber to distribute the solution throughout the ship. Unfortunately, a sudden accident thwarts the attempt.

Meanwhile, Noranti discovers that the herbicidal element can also be found in Moya's conduits. The crew comes up with a plan to perform a dangerous 'controlled burn' of Moya, but Pilot's sudden reawakening disrupt the plan. Only the actions of Scorpius put it back on track.

With Moya safe once more, the crew elect a Captain for the ship - choosing D'Argo to lead them. A heart-to-heart chat between Aeryn and Crichton reveals a rift between them.