Community season 5, episode 4, “Cooperative Polygraphy,” airs tonight at 8 p.m. ET on NBC. The gang must confront some harsh truths during a lie detector test.

Last week on Community, everything was fun and games with a David Fincher-inspired investigation of the Zodiac-like “Ass-Crack Bandit” until a dose of reality intervened with news of Pierce Hawthorne’s (untimely?) death.

Now the gang must deal with the fallout of the death of one of their own. Thankfully for us, this includes a lie detector test that will undoubtedly make everyone uncomfortable, as well as the services of incomparable guest actor Walton Goggins (of Justified).

Goggins will be portraying “Mr. Stone,” who leads a team of investigators that must test the Greendale gang with a lie detector before they can receive the contents of Pierce’s will.

This was the last episode that critics received in the press kit to review the fifth season and word has it that there is a lot of information regarding Troy’s departure from Community season 5 in episode 5.

Photos from season 5, episode 4 ‘Cooperative Polygraphy’ with Walton Goggins

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Watch ‘Community’ season 5 online

Episodes of Community season 5 are available on both NBC.com and Hulu the morning after the episode airs. Hulu also offers the most recent five episodes as well as the entire series for Hulu Plus users. Community season 5 is also available on iTunes on a per-episode basis or with a season pass.