S5E12 · Commissions and Fees

Complete story — includes the ending

Bert examines SCDP's financial records and approaches Don about Lane's forged check. When Lane confesses to stealing money from the company, Don fires him. Sally refuses to join Betty for a family ski vacation and decides to stay with Don and Megan. While having a rendezvous with Glen, Sally experiences her first period and returns to the Francis house to seek comfort from Betty. After Don expresses a yearning for more, Roger gets him a meeting with Ed Baxter at Dow Chemical. Ken requests to manage Dow Chemical, but asks that Pete be left off the account, due to Pete telling Roger about Ken's writing. Lane falls into a depression and attempts to commit suicide in his Jaguar through carbon monoxide poisoning. When the car fails to start, Lane returns to the office and hangs himself. The following day, Joan is unable to enter Lane's office. Disturbed by a foul odor, Joan notifies Pete, Harry and Ken, who quickly discover Lane's corpse through the office window. While waiting for the police to arrive, Don, Roger and Pete force their way into Lane's office and cut him down to preserve his dignity; they also discover Lane's resignation letter in the process.