When the remains of a miner, known as a "sandhog" because they dug deep tunnels, who disappeared in 1948 are found in a subway service tunnel, the team is prompted to reopen the case when they suspect the victim might have been murdered for being a union activist. Meanwhile, Lilly's old flame Ray returns.
Lilly starts dodging Joseph's calls.
- Kathryn Morris as Lilly Rush
- Danny Pino as Scotty Valens
- John Finn as John Stillman
- Jeremy Ratchford as Nick Vera
- Thom Barry as Will Jeffries
- Tracie Thoms as Kat Miller
- Brennan Elliott as Ray Williams
- Lee Burns as Bobby McCallister (1947/1948)
- L. Scott Caldwell as Alice Stallworth (2006)
- Jack McGee as Bobby McCallister (2006)
- Neil Jackson as John "Boomer" Donovan
- Enuka Okuma as Alice Stallworth (1947/1948)
- Skyy John as Nate Stallworth
- Marc Ewing as Hank Bishop
- Gino Anthony Pesi as Mateo Zaccardo (1947/1948)
- Unknown child actor as Sam Bertleman Jr. (1947/1948)
- Joe Young's case box is visible when Jeffries puts Donovan's case box away.
- The term "sandhog" is traditionally associated with NYC rather than Philly.
|Season 4 Episodes|
|Rampage | The War at Home | Sandhogs | Baby Blues | Saving Sammy | Static | The Key | Fireflies | Lonely Hearts | Forever Blue | The Red and the Blue | Knuckle Up | Blackout | 8:03 AM | Blood on the Tracks | The Good-Bye Room | Shuffle, Ball Change | A Dollar, A Dream | Offender | Stand Up and Holler | Torn | Cargo | The Good Death | Stalker|