J. Douglas Stewart

A pipe bomb explodes in one of Lex's secret labs; the enraged spouse of a special-forces soldier takes Lex hostage, and Clark tries to rescue Lex.

In the 1950s, two FBI agents investigate strange deaths somehow linked to Mulder's father.

Sara is worried about her family, after learning why Michael faked his own death. Meanwhile, Sucre helps Michael and Lincoln find a way home.

A major drug dealer (Mädchen Amick) turns out to be responsible for a murder 20 years earlier, which Pritchard helped cover up; Otto wants to find another blood donor for Mary; Gracie dates an older guy.

What looks like a self-defence case turns out to be something much more calculated; Cross tries to establish himself in his new position.