McClane/Riggs/Michael versus 30 Days of Night/The Lost Boys/Dracula...
On night in L.A., a group of vampires attack. It's David and The Lost Boys. They swoop down and one by one take people off the street, disappearing into the sky with them. Just ahead, the vampires from 30 Days of Night are attacking people on the ground. It appears that the two rival vampire clans have joined forces and are feasting on L.A.'s citizens. At that moment, Dracula from Van Helsing lands in the street, surrounded by his three brides. They join the 30 Days of Night vampires in the feast.
McClane and Riggs speed towards the vampires, but their car is overturned by Dracula. Stumbling out of the wreckage, they draw their pistols to fight off the vampires, when out of nowhere, Michael, the half breed from Underworld, appears carrying a large duffel bag. He approaches Riggs and McClane, opens the bag, and hands them several magazines of UV rounds, in addition to an H&K MP5 each. Together the three have to fight off the vampires.
Do they win? Or does LA become a vampire paradise?