When Horatio's ex-girlfriend is killed in an explosion, the team looks within their own department to find the killer.
A seemingly perfect jewelry heist ends in murder and when crime scene evidence is stolen from the lab, Delko returns to find the culprit.
Rush and the team investigate the 1978 death of a teenage roller skater who was found in a ravine. A new witness emerges claiming to have information about the case, and the team must determine if it may or may not be true.
When a dying man with a long-standing vendetta puts a hit out on Josef, Mick discovers a secret his best friend has kept from Mick for over 40 years -- and the real reason Josef believes Mick and Beth can never work.
