The episode received generally favorable reviews from television critics, who noted that despite its raunchiness, it contained sharp dialogue and quick wit.

The following day, while trying to get members of the organization to smell his dry cleaning due to its strangely curry-like odor, he is called into the office of Malory, his mother and boss, where he is chastised for misusing his ISIS-run expense account.

He seeks assistance from Cyril Figgis, a member of the organization and his ex-girlfriend Lana Kane’s current boyfriend, to clear his account, but he refuses.

Though he initially thinks that this will be an extremely difficult task, he discovers that actual security is appallingly terrible and he easily figures out the password to hack his account after the first try.

He reveals that he is actually a Russian spy named Kremenski and fears the agency has started to realize that he is a mole, so he plans on stealing $50,000 from Archer's account and fleeing from the country.

Malory notes that she would have known if there was a mole at ISIS, her earlier phone call interrupted by Archer, was shown to have been with Nikolai Jakov, head of the KGB.

"Mole Hunt" was written by Archer creator and executive producer Adam Reed, while the series' animation director Mack Williams directed it.

[1] Reed had been known for his creation of several Adult Swim animated television programs that he worked on with Archer co-executive producer Matt Thompson, such as Sealab 2021 and Frisky Dingo.

"[9] FX originally planned on pairing the premiere of Archer with the fifth season of the network's situation comedy It's Always Sunny in Philadelphia on Thursday nights in the fall.

[21] Writing for Variety, Brian Lowry opined that with "Mole Hunt," Archer "gives FX something that the drama-heavy channel hasn't enjoyed for awhile — namely, a sharp comedic arrow in its quiver.

"[24] Mark A. Perigard of the Boston Herald, awarded the episode a "B+" calling it a "spy spoof [that] hits a bull’s-eye with risque snark and one of the best vocal casts assembled for any animated series.

"[26] Rob Owen in his review for the series in the Pittsburgh Post-Gazette said that though it was crude, the episode is "far more clever than last fall's disappointing 'Testees,'" and that it "wins points with its observational humor about modern life and in its mocking of mundane workplace minutiae.

Barry Garron of The Hollywood Reporter did not enjoy the episode, saying it "looks great but could be much funnier" and "rife with words that would be bleeped on broadcast channels and even most other basic-cable outlets.