Is this the best, most exhilarating, most close-to-perpetual dancing ever to grace the Goodspeed Opera House stage?

It certainly could be.

The new stage adaptation of “Summer Stock” at the East Haddam theater has plenty to recommend it in terms of the canny script and the hummable songs. But it’s the dancing that leaves the biggest impression.

The show is jam-packed with choreography from Donna Feore, who also directs, that is thrillingly executed by the cast.

We’re talking: Gravity-defying kicks. Head-spinning turns. Male dancers lifting and tossing and catching the female ones. It runs the gamut from Cossack-dance athleticism to soft shoe grace, tap precision to Lindy hop energy.

How the cast manages to sing after executing these (literally) breathtaking numbers, I have no idea.

And how do they make it through two performances on some days? Amazing.

Also amazing: the fact that they do all this on Goodspeed’s small stage without making the space feel cramped.

So, yes, the dancing is phenomenal. But there’s more to the show than that.

This stage version of “Summer Stock” — which is enjoying its world premiere at Goodspeed — is inspired by the 1950 MGM movie starring Judy Garland and Gene Kelly. Writer Cheri Steinkellner, though, has reimagined the piece in many ways, making it better, stronger and propelled by a more modern sensibility. (Steinkellner’s writing credits range from “Cheers” to the Broadway adaptation of “Sister Act.”)

The foundational story, though, remains the same: A no-nonsense young woman named Jane is trying to save her family farm. Her actress sister (named Gloria in the version at Goodspeed) brings her compatriots to the farm to rehearse a show. Jane first spars with and then starts falling for Gloria’s beau Joe, the production’s director.

Steinkellner has also changed up the score, to great effect. While some tunes from the movie remain, she has pulled others that are in the public domain (such as “Accentuate the Positive,” “Paper Moon” and “It Had to Be You”), and she has woven them perfectly into various plot points and important emotional moments.

As director, Feore makes sure the whole enterprise has a dynamic spirit. It’s a story and a production that brims with optimism and cheerfulness.

Leading the cast is Corbin Bleu, who became famous with his work in “High School Musical” and has gone on to star in several Broadway shows, as Joe. Bleu is a true, and truly talented, triple-threat. He has a warm, welcoming presence as an actor; he also brings an authority to Joe so you believe he’s someone the actors respect and will follow. Bleu’s singing is strong and lustrous, and his dancing — particularly his tremendous tap ability — is … wow.

Arguably the biggest scene-stealer here is Veanne Cox, as the wealthy, snooty owner of huge property surrounding Jane’s. The way she trills dialogue can turn anything into a punchline. She can wave her arms about as her character repeats “l’amour” and generate audience laughs. When her character falls for the egoistic actor Montgomery Leach (played by J. Anthony Crane with Barrymore flair), Cox burbles with girlish romantic giddiness.

Danielle Wade does her own take on the Judy Garland role. She gives Jane a swagger and a tough façade that reveals a more human self during the course of the story. Wade’s most important feature is her voice, which is potent whether she’s finessing a ballad or powering through a big number. While she can’t compete with Garland’s renowned version of “Get Happy” (who could?), Wade does a good job in the number — choreographed and costumed in an homage to the original — that serves as the culmination of the production.

Arianna Rosario gets to play an interesting arc at Gloria. At first, Gloria seems to be a blithe, self-centered actress, but she later shows that she is quite the problem-solving producer. Rosario makes the transformation believable, as if Gloria is finally letting her real self come through.

The scenic design by Wilson Chin suggests the various elements of a Connecticut River Valley farm in the 1950s while still allowing room for the cast to burst into all of those big dance numbers. And the costume design by Tina McCartney provides a fun and functional take on country clothing of the era.

I will say that the second act could be tightened up (we don’t need to see so many beats of the rehearsal process), but, in total, this “Summer Stock” is sensational.

If you go

What: “Summer Stock”

Where: The Goodspeed, 6 Main St., East Haddam

When: Through Aug. 27; 3 and 7:30 p.m. Wed., 7:30 p.m. Thurs., 8 p.m. Fri., 3 and 8 p.m. Sat., and 2 p.m. Sun.; also 2 p.m. shows on select Thursdays and 6:30 p.m. shows on select Sunday

Tickets: Start at $30

Contact: (860) 873-8668, goodspeed.org