If nothing else I have to hand it to the creators of Cerberus who managed to mix the religions and legends of several cultures into one wild modern day plot.
Cerberus of Greek mythology as we know is the guardian of the Underworld or Hell as we call it. It seems as though back in the day or back in another day, Attila the Hun made a deal with old Scratch for an invincible sword which is said to be buried with him. But his resting place is both lost to history and is guarded by Cerberus lest someone else get Attila's invincible sword.
Well now a renegade North Korean general with a resemblance to Fu Manchu is played by Garret Sato wants the sword. It's all he needs to start on his road to world conquest. He hires an American mercenary in Greg Evigan to help get the magic blade, but the Evigan starts getting ideas of his own.
You need an archaeologist with a working knowledge of the Balkan legends to help find Attila's grave so that's where Dr. Emmanuelle Vaugier comes in. They kidnap her brother on the pretext of a gambling debt so she comes along. And Evigan has some US Army Special Ops folks looking for him headed by Sebastian Spence. They all meet up with that nasty three headed Cerberus in, where else, Transylvania.
It's imaginative, but in the end Cerberus is still utter claptrap. They should have left the poor beast alone with the Hercules series.