When Mozzie believes someone he cares about has been kidnapped, he turns to Peter and Neal for help.

Reese and Finch must protect Harper, a street-smart grifter, when her plan to steal cash from a medical marijuana dispensary goes up in smoke.

(Crossover episode with CSI: New York, Season 2 Episode 7.) A crossover episode that concludes on “CSI NY” begins with a convicted serial killer who escapes after sabotaging an airplane…

A mentally challenged man is reunited with the mother who gave him away after his brother is killed.

Briscoe and Green catch four murders and a kidnapping on the same day, and get handed confessions in each case.

After a disabled boy dies of smoke inhalation during a fire, his parents and a building tenant with a history of “”accidental”” fires become suspects.