Valens partners with Rush to locate her abducted, drug-addicted sister, while Jeffries tries to bring justice to the case of a murdered teenaged girl that has haunted him for 17 years.

The team investigates the 1989 case of a prom queen who may have been intentionally killed in a hit-and-run; Rush tries to ignore her father’s requests to give her sister (Nicki Aycox) another chance.

Rush and FBI agent Ryan Cavanaugh discover their attraction for one another while investigating the 1969 murder of a GI at Woodstock, and Vera helps his married ex-girlfriend, Megan, after sentimental jewelry is stolen from her home.

After determining the serial killer’s identity, the team works with the FBI to apprehend him and protect potential targets.

When ballistics tie a recent murder case of Rush’s to a serial killer who was seemingly inactive for 27 years, a tough FBI agent with ties to Stillman shows up to enlist the team’s aid in finding the killer who has eluded her for 30 years.

Realizing that the missing Vera has finally hit rock bottom, his worried team members hope that a new twist to a 2006 arson case, which he was secretly obsessing about in recent weeks, might supply leads to his whereabouts.