The upcoming 150th episode of the CW's Arrow will offer a slightly different take on the long-running superhero series, as it be a special documentary-themed episode guest-starring Kelsey Grammer.

The episode in question, titled "Emerald Archer," will air on Monday, Feb 4 as the 12th episode of Season 7. The episode will feature an in-universe documentary called "The Hood and the Rise of Vigilantism," which stars Oliver Queen, Felicity Smoak and their Team Arrow compatriots.

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The official synopsis for "Emerald Archer" reads, "showcases a documentary entitled “The Hood and the rise of vigilantism” starring Oliver Queen (Stephen Amell), Felicity Smoak (Emily Bett Rickards), and the rest of Team Arrow. As a camera crew follows Oliver and team around to talk about their past as vigilantes and what the Green Arrow means to Star City, Oliver must also deal with William’s (guest star Jack Moore) return from boarding school as well as a new threat to the city."

The episode will also include“documentary footage” and "interviews from those who have worked alongside the Green Arrow."

The episode's documentary will be narrated by Kelsey Grammer, who's most known for his roles as Frasier Crane on Cheers and Fraiser as well as his role as the X-Men's Beast in X-Men: The Last Stand.

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Airing Mondays at 8 pm ET/PT on The CW, Arrow stars Stephen Amell as Oliver Queen, David Ramsey as John Diggle, Emily Bett Rickards as Felicity Smoak, Rick Gonzalez as Wild Dog, Echo Kellum as Mr. Terrific, Juliana Harkavy as Black Canary, Colton Haynes as Arsenal, Kirk Acevedo as Diaz, and Katie Cassidy as Black Siren. The series returns for the back half of Season 7 on Jan. 21.