FBI Agent Eddie Zane has clearly been the bad guy all along. He keeps tabs on Roland's daughter, and when the blonde cheerleader phones little Emma for some help, Zane is able to trace the call.
Zane escalates things when he kidnaps Roland's girl - and offers an exchange.
On a bus heading for the Mexican border, the cheerleaders have managed to smuggle themselves onboard in various disguises. When one fakes contractions, it is an opportunity for the others to free Emma and get her out through the top vent/sun roof thing that those coaches have. They perform their cheerleading drill to get her safely to the ground.
Meanwhile Zane has figured something is up and has ushered everyone else off the bus. He drives off, just as Emma jumps, but Roland is soon on the chase.
Heading straight for the border, Roland takes out the coach which flips and lands on its side a few metres from 'safety'. Roland The Ranger has got his man.
Cut to: a mobster guy is ushered into a crowded courthouse, swarmed by the press. I'm guessing its the main drug cartel bad guy.
A little later, the girls are helping Roland look Sharp (get it?) for his wedding - to Professor Molly. The cheerleader that had a crush on him wishes them both the best. Roland and Emma have also patched things up now too, and everyone is one big happy family.