Sam and Kelly are forced to team up with the enemy to take down an even bigger threat; the undercover sting takes a dangerous turn; Sam and Kelly must give their best performances yet to escape with their lives.

In the aftermath of their shocking discovery, Sam and Kelly embark on a border-crossing mission to take down the new Stockwood boss.

Tracking the source of a new MDMA brings Sam and Kelly into the unlikely world of flower deliveries; they narrow in on a new Stockwood player.

With Sam's promotion on the line; Sam and Kelly stake out an auto body shop, hoping to reel in Stockwood's last big fish.

When a cooler full of guns puts Sam and Kelly on the trail of 77 more black-market firearms, the pair find themselves in a life-or-death situation.

Kelly enlists Elliot's help to investigate an MDMA dealer in his school; Sam's investigation into a father's missing guns takes a turn; she's surprised by who gets caught in the crossfire.

With a promotion in her sights, Sam recruits Kelly for a high-stakes sting that will get them one step closer to catching the Bowen Brothers; when Sam's power play takes an unexpected turn, it puts Kelly in unforeseen danger.

With an informant's life on the line; Kelly enlists Sam's help in raiding a Stockwood stash house.

Sam calls on Kelly's undercover skills when she gets a lead on a gun-dealing dollar store. But when Kelly's cover is blown, Sam's forced to get out of her comfort zone to expose the supplier.

After a failed drug bust, Sam and Kelly discover they're after the same dealer, forcing them to team up to take down a major Stockwood player.