Felony Flight

S4, E7: Henry Darius, a convicted serial killer, confesses to an unsolved murder and is flown from New York to Miami to show the police exactly where he buried the body. However, as the plane flies into Miami, it crashes and Darius escapes. As Darius begins a Miami killing spree, New York's Detective Mac Taylor, who put Darius away the first time, comes to help Horatio and the team track Darius down before he kills again. (Concludes on CSI: NY ep 207, "Manhattan Manhunt".)