 The film's title is a play on the second largest shopping mall in the Philippines, SM Megamall, which is located in Mandaluyong City and is a portmanteau of the lead stars' respective nicknames, "Mega" and "Gamol", respectively.Set on a road-trip narrative, Corazon (Sharon Cuneta) and Clark (Andrew E.) have an adventure throughout Metro Manila running away from kidnappers led by Brando (Bong Alvarez).They escape the kidnappers after a confrontation with Brando in a Jollibee restaurant while eating on a pick up truck to Clark's house where his cousin Bugoy (Smokey Manaloto) and Neneng (Maybelline dela Cruz) live causing chaos along the way in the process.