During a series of rolling blackouts, the team tracks a serial killer in Los Angeles who targets families.
When evidence indicates that the Gig Harbor killer is responsible for yet another death, members of the CSI team become frustrated.
Michael is surprisingly cheerful after learning bad news about Donna; new parents Pam and Jim have a hard time staying awake at the office; Dwight refuses to honor a contract.
Nora's date night scandalizes the couples in the Walker family; Kitty's relationship with Seth is the subject of Internet gossip.