Artie, Joe's friend, comes back into town, and offers Joe a business proposition. His plan is to dig a tunnel from a bookstore to the bank across the street right into the vault. Lily goes undercover as the bookstore owner to keep the customers distracted from what's going on in the basement with Joe and Bruno. Also, things get complicated when Joe's old flame shows up and wants to move in with him.

Elena enters a rehab clinic in order to find out where $5 million in missing DEA money is located; Darnell poses as a hit man to thwart a murder attempt, in a case involving a nationwide drug ring.