While interviewing prisoners as part of a murder investigation, McNally and Swarek question Swarek's inmate father, who claims to know a dark secret that could threaten Sam's badge. Will we finally find out why this father and son have been at odds for so long?
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Check out these photos from "Two Truths and a Lie" for clues to what happens next week:
Andy McNally wonders what Sam's secret could be, in Episode 506 "Two Truths and a Lie."
Sam Swarek talks to his father in Episode 506 "Two Truths and a Lie."
Rookie Blue stars Missy Peregrym as Andy McNally, Gregory Smith as Dov Epstein, Charlotte Sullivan as Gail Peck, Enuka Okuma as Traci Nash, Travis Milne as Chris Diaz, Peter Mooney as Nick Collins, Ben Bass as Sam Swarek, and Priscilla Faia as Chloe Price.