On Tonight

Agent John Doggett heads an FBI manhunt to locate the missing Mulder. Meanwhile, Scully and Skinner use information supplied by the Lone Gunmen in their quest to find their colleague.

While searching for the missing Gibson Praise, Scully, Skinner and Doggett encounter the alien bounty hunter, who uses his shapeshifting abilities to fool the FBI as he attempts to destroy the boy.

A girl's recovery from a gunshot wound inspires the community to get her justice.

Twenty-five years after a man involved in a love triangle is stabbed to death, detectives reopen the case.

Detectives suspect the drug-addicted son of a murdered suburban couple, but when another suspect emerges, Deakins urges Logan and Barek to drop the case.

A machete-wielding killer targets affluent art-owners, and detectives focus on a group of youngsters a foster mother has raised.

Oklahoma City, Oklahoma continues and competitors are giving it their all.

Competitors in Philadelphia take on obstacles, including Wall Drop and Rolling Thunder.

A young, married business woman is found stabbed to death.

Fin and Munch undertake a statewide manhunt to find a brutal serial killer/rapist.