Jerry Welbach, a reluctant bagman, has been given two ultimatums: The first is from his mob boss to travel to Mexico and retrieve a priceless antique pistol, known as "the Mexican"... or suffer the consequences. The second is from his girlfriend Samantha to end his association with the mob. Jerry figures alive and in trouble with Samantha is better than the more permanent alternative, so he heads south of the border.
A wounded man makes a desperate call, reporting that a gunman is holding a coffee shop hostage and shooting anyone he pleases -- but when the SWAT team shows up, the madman opens fire. Through flashbacks, a waitress serves an array of customers, all of whom are blissfully unaware of how their lives will be horrifically changed.
A group of heavily armed hijackers board a luxury ocean liner in the South Pacific Ocean to loot it, only to do battle with a series of large-sized, tentacled, man-eating sea creatures who have taken over the ship first.