Mark Thompson

During a series of rolling blackouts, the team tracks a serial killer in Los Angeles who targets families.

Brian asks Reba out for Valentine's day but she is nervous and pretends to be sick; Jake likes a girl at school.

Melinda must contend with crash investigators and an evil spirit when she tries to help hundreds of confused passengers killed in a jetliner crash.

Mulder and Scully suspect that hexcraft is the source of a threat against a doctor's family.

President Palmer must make a life-threatening decision regarding Jack. Meanwhile, Kim learns of her father's drug addiction; and Ryan Chappelle takes command of CTU.

In order to stop the release of the deadly virus, Jack starts a riot to break Ramon Salazar out of prison. Meanwhile, CTU is closer to finding Kyle Singer; and President Palmer and Senator Keeler begin their debate.