Michael St. John Smith

Dr Melendez and Dr Unger discover their patient isn't being completely honest with them. Dr Browne must learn to communicate with Dr Murphy as they race back to the hospital with a donated organ.

Ryan (from "Stray") returns and Clark has to save him from Dr. Garner of the Summerholt Research Facility. Meanwhile, Aunt Nell leaves Smallville, and Lex wants to expand the plant but runs afoul of the mayor.

In an attempt to protect the rest of the team, Oliver registers for the Vigilante Registration Act; Lois becomes frustrated when Clark continues to brush aside her offers to help the team.

The agents (David Duchovny, Gillian Anderson) may have uncovered the Cigarette-Smoking Man's (William B. Davis) true identity.

The agents investigate a group of anti-government terrorists who are experimenting with biological warfare, and Scully notices a change in Mulder's behaviour.