Megaforce is apparently an elite US rapid deployment team who drive buggies and ride flying bikes. They are sent to deal with a tinpot dictator somewhere in the desert and hilarity ensues.
That hilarity is unintentional (naturally). This film is horrific in many ways, with poor effects, a ropey plot and acting.
The main selling point of the film, the Megaforce, is also rather poor. "Elite forces" who'd struggle to blow the door off an old barn. It is well worth seeing of course for the pure cheese value.