Mary tries to figure out how Lee was compromised; fearing a leak within CSIS, she gets Vancouver Homicide to investigate Lee's death. Ronnie is certain Michael was hit by the bikers, and wants to strike back. Mary finds out Donny received a call from a police Commissioner in Hong Kong the day before he killed Lee. Reardon takes a meeting with a new marijuana supplier, who is actually a DEA undercover operator. Martin investigates Canadian research scientists selling seed patents to American agri-businesses. Mary arrests Bingham and convinces him to provide her with info on his gun-running connections. She wants Reardon to work with Bingham, but Reardon only agrees after Mary confirms it was the bikers who hit Michael. Mary learns that it was Deakins who called the Hong Kong police commissioner. Reardon meets with Phan about hitting the bikers' money exchange.