As a price war looms, Jimmy contends with a grower who lost a crop in a security lapse. Mary meets with her CSIS rival and learns of deadly enemies.

As Jimmy interviews new suppliers, his brother runs weed to the U.S., while Mary recruits escort Tina, hoping she can infiltrate the Reardon empire.

While dealing with the mole in her wire room, Mary makes a presentation to cement her CSIS promotion. Ronnie worries about Michael's erratic behavior.

Jimmy has trouble operating his money-laundering bank machines. Mary learns the mole has a girlfriend whose brother works for a Chinese syndicate.

Jimmy weighs whether to get involved in a gun-running scheme. Mary confronts the mole and learns of a Chinese dissident marked for assassination.

Mary aims to tie the mole to her rival, Deakins, but the mole gets a visit that changes Mary's plans. Michael has a run-in with a pair of assailants.

The mole's execution on Mary's watch threatens her promotion. Jimmy resists going to war with the Disciples until all evidence against them is in.

Jimmy and Ronnie's plot to hijack a Disciple courier goes awry. Mary refuses to identify her informants to CSIS and plans to apply pressure in Ottawa.

Supplier Winston's actions at a traffic stop make Jimmy and Ronnie doubt his judgment. Mary asks Deakins to stay on while she investigates the leaks.

Feeling ambitious, Michael looks to buy a nightclub, while Jimmy eyes an offshore bank. Mary offers Randy and his gun-running operation protection.

The DEA busts Jimmy's U.S. distributor and plots a sting, but hoping for riches and promotions for Mary and Ted, Deakins tells Ted to call it off.

Dante leaves the club with a prisoner in his car and is pursued by Jimmy and Ronnie. Before the ax falls on her, Mary collects evidence on Royden.

Jimmy determines to learn the name of the OCU officer threatening to out him as an informant. Mary devises a last-ditch scheme to eliminate Royden.