1 - Road Trip Killer

John is on the trail of fugitive Larry Hicks, accused of murdering a devoted mother of two in Plattsburgh, N.Y.; Callahan heads to Texas to shine the white-hot spotlight on accused predator Steven Leifeste.

2 - Dead of Winter

In pursuit of Dylan Harrington, John takes on a bone-chilling murder case in remote Washington State.

3 - Blood in the Streets

John joins law enforcement in pursuit of Luis Montes, accused of murdering his on-again-off-again girlfriend in Texas; Callahan heads to Chicago to shine a light on two victims of gun violence whose cases remain unsolved.

4 - Masked Murderer

John and Callahan hunt down John Galvao-Sahb and Dublas Gonzalez.

5 - Darkest Hour

6 - Crypto Queenpin