Please answer the following question: Generate a question that has the following answer:  bikers appear and start the surf and turf war  for the following movie plot:  This article's plot summary may be too long or excessively detailed. Please help improve it by removing unnecessary details and making it more concise. (May 2014) (Learn how and when to remove this template message) Brady (Ross Lynch) and Mack (Maia Mitchell), are surfing together at a beach near McKenzie's grandfather's beach hut. Mack walks in on her grandfather and Brady watching their favorite film Wet Side Story, where bikers and surfers battle for which gang gets the privilege to hang out at Big Momma's. Brady later learns that Mack made a promise to her aunt that after her mother died she would attend a private school and they are to leave the next day. Mack asserts that although going is her choice, she feels it is what she has to do, since it's what her mom would want. She sadly tells Brady they will have to break up. Before Mack leaves, she decides to surf a 40-foot wave that is about to hit the beach. Alarmed, Brady gets on a jet ski and goes after Mack, who is still in the ocean. Mack and Brady end up getting swept away and eventually end up on another beach. They soon realize they have been swept inside Wet Side Story. Eager to seize the moment, Brady joins the original cast in singing ("Surf Crazy"), to Mack's dismay. Brady relents and informs Mack that there will be a storm and giant wave that should bring them back home at the end of the movie. They go into Big Momma's, the movie's diner and hangout and introduce themselves to the surfers just before the bikers appear and start the surf and turf war ("Cruisin' for a Bruisin'"). After, Mack and Brady are invited by surfers to come to a party at Big Momma's later that night. Just then, their clothing is suddenly changed to fit the movie and Mack's surfboard appears nearby them. That evening during a dance in Big Momma's where Lela (Grace Phipps) is performing ("Falling for Ya"), Mack and Brady are arguing when they suddenly change the movie when the movie's lead man, Tanner (Garrett Clayton), falls in love with Mack after she bumps into him and...
A:
what's the problem with the local hangout?