While on a planetary expedition, Lt. Scott is infected by a plant and he now has a fungus-like growth on his left arm. TJ has tried everything known to her but she cannot get the fungus to stop spreading. Col. Young refuses them permission to return the Destiny to prevent the spread of the unknown disease and they face the prospect of having to surgically remove Young's arm.

Cast: Robert Carlyle, Justin Louis, Brian J. Smith, Elyse Levesque, David Blue, Alaina Huffman, Jamil Walker Smith, Peter Kelamis, Jennifer Spence, Julia Benson, Patrick Gilmore, Lou Diamond Phillips, Cole Humphrey, Mittita Barber, Jeffrey Bowyer-Chapman