When a space shuttle mission is sabotaged, Mulder suspects it may be the work of an evil extraterrestrial spirit that inhabits the body of a former Gemini astronaut.
While attempting to stop a robbery, Clark shoots a burst of heat vision that is accidentally reflected back into his eyes by a piece of Kryptonite, causing temporary blindness. He soon discovers that his body has developed extremely sensitive hearing to compensate for his vision loss.
The mysterious Green Arrow steals a necklace from Martha, and both Lois and Clark resolve to find out who the vigilante is. While Clark determines Green Arrow's true identity, Lex continues his investigation of the mysterious black box while Lionel warns Lana against him.
Rachel's cousin is involved with a drug trafficker; Tony thinks no one cares about his 40th birthday.
MacGyver goes undercover as a logger when an activist friend suspects a lumber baron of illegal strip-cutting and murder.