What’s not to love about a performance full of irreverent humor, hummable tunes, and some discreet yet powerful messages about the power of the underdog to lead? That’s The Book of Mormon in a nutshell, onstage at Shea’s Buffalo Theatre for a short run to June 21.

This “extra” closes the current season. The production has had a few updates since it was last here seven years ago (spoiler alert: look for Jeffrey Epstein in “Spooky Mormon Hell Dream”) and some of those updates include more references to texting, social media, and more f-bombs than I remember from before.

This young touring cast has great energy and enthusiasm for the show material: in brief, a group of 19 year olds are assigned their two year Mission for the Church of Latter Day Saints and the most envied Elder (Elder Price, played by Ethan Davenport) is paired with the least promising (Elder Cunningham, in a remarkable national tour debut by Jacob Aune) to travel to Uganda. It’s a tough gig, because the Elders there haven’t been successful in welcoming new Mormons to the fold, no thanks to a warlord who likes to shoot people in the face. There is some actual church history woven in, in small and more comedic doses, which actually caused most agita from Christians when the show debuted years ago. I was told by a member of the church to listen to the audience: when you hear spotty giggles at places where it may not seem funny, that could be a Mormon catching an “inside joke” in the script or music. Yes, it’s that kind of show. It’s a key thing to remember that the book and lyrics were co-written by the award-winning composer Robert Lopez with Trey Parker and Matt Stone who also created the “South Park” franchise. Yes, there is sarcasm in all forms on top of the irreverence.

This cast makes it all look so fun. From the iconic opening number, “Hello,” with it’s perfectly synchronized timing and rhythm to some ultra peppy dance numbers like “Turn it Off,” the ensemble’s tight harmonies and moves are a delight. There’s even a bone fide Act 2 power ballad: Davenport delivers an outstanding performance of “I Believe.”

I had some concerns about the set at times. Yes, I know road shows are often hampered by what can’t fit in a truck, and the painted backdrops in Act 1 didn’t look up to par for me, but other set pieces and scenography made up for this later on.

Admittedly, this may not be everyone’s show, but darn it’s funny, and it’s always good to see the overly cocky guy find new faith in the less obvious hero.

The Book of Mormon is a fast-paced two hours with a 15-minute intermission, only to June 21.