After meeting Luke, who takes Moose to his warehouse where dancers can be dancers and there’s a “vault” upstairs where there seems to be a 24/7 rave happening, we get confused as to whether maybe Luke and the girl he’s stalking with his camera for his dance documentary are the main characters. We learn this girl is Natalie (Sharni Vinson) and she seems to be a classically trained dancer who just wants to get her groove on. Luke’s documentary is about dancers and is called “Born From a Boombox.” This also leads Luke to hilariously start calling people BFAB. If you don’t find this amusing then the joke's on you and Disney will continue to keep raping your wallet.
We also learn some random plot elements such as Julien used to be part of Luke’s group called “The Pirates” but has gone on to form his own dance group called “The Samurai.” There’s also a random expositional Pirate character who has conversations with Luke only to further things along but to make sure we know that the bank wants to seize Luke’s warehouse as he’s almost six months behind on his payments because the warehouse used to belong to his parents.
But wait, there’s a World Jam coming up and wouldn’t you just know it, the grand prize is $100,000. But someone isn’t who we think she is and may be there under false pretenses and this same someone just may be the brother of someone who happens to have thrown a match to win some money. At one match there’s even some random Rambo homage complete with aging Asian wagers.
In the meantime, Luke falls for Natalie and they make out atop what appears to be a crematorium while later the truths are revealed at her big birthday party and Moose has to decide between dancing with his fellow Pirates and taking his 8 pm math exam and learns the hardships of standing up your best friend as the other half to their Mary Kate and Ashley Halloween costume.
If Natalie were really falling for Luke and wants to crush her brother, wouldn’t she step up and join them at the World Jam to kick Julien’s ass? Nope, not here. Instead she packs up and buys a ticket to California where she just wants Luke to run away with her so she can get away from it all and he can finish his documentary and go to film school. Meanwhile, Moose has gathered up his crew from the last Step Up including Kido (Mari Koda) and Cable, better known as Glee’s own “Other Asian” (Harry Shum Jr.).