John Churchill

When four men from Oregon go missing, the team looks for a common link; J.J. is upset when her son doesn't want to celebrate Halloween.

Grissom and Sara close in on who framed Hodges; a cargo plane lands autonomously at McCarran Airport and everyone on board is dead.

A quadruple homicide shatters the serenity of a quiet suburban neighborhood and Grissom's team sets out to discover the motive behind the bizarre murders.

A serial killer begins leaving clues to taunt Grissom; Warrick and Nick clash when they investigate a car accident.

When a woman's body is discovered in a missing showgirl's swimming pool, the team believes they've got a double murder on their hands.

Supergirl's powers are tested when Reactron (guest star CHRIS BROWNING), one of Superman's formidable enemies, arrives in National City and targets the young hero. Also, Cat plans to run an expose on Supergirl.