While trying to cover his tracks with his expense report, Archer stumbles upon a company secret. Tension rises between him and Lana.
Lana lusts for Sterling Archer, which leads Malory to promote Cyril to a field agent. Archer is forced to train Cyril, while Malory worries about her son's future.
A new field agent makes a splash at ISIS, but the other agents begin to believe there's something suspicious about his perfect facade.
Malory holds a party for UN intelligence chairmen, but assassins are out to kill him.
Malory's job is in danger after a sensitive videotape falls into the wrong hands, and she must rely on Archer's skills of seduction to save it.
Malory chooses Lana over Archer for a mission to Saint-Tropez to take out an international arms dealer, and she accompanies Lana there as well for a "conference" that turns out to be a tryst with her KGB paramour, Nikolai. Back at ISIS headquarters, Cyril is worried sick about Lana's safety - not to mention, her fidelity.moreless
A bomb threat jeopardizes a luxury airship's maiden voyage, sending the ISIS crew into action.
ISIS loses yet another contract to ODIN, so Malory assigns Archer and Lana to steal a priceless diamond from ODIN's biggest client in order to embarrass the rival spy agency.
When rival agency ODIN offers Lana a better-paying job, Archer ends up grabbing the position first. This devastates Malory, who will stop at nothing to prevent him from keeping it. Meanwhile, Lana goes to ODIN headquarters to try to get the job originally offered to her.
Questions about the identity of Archer's real father lead him into a trap - and a confrontation with Malory. Meanwhile, Lana learns of all of Cyril's past indiscretions and decides to get even.