The mentor is too weak to go any further to defeat the head vampire and the further he gets into the cave the weaker he gets due to a curse the vampire put on him in a past ordeal. Inside, they must fight many smaller cave dwellers such as killer bats and spiders to advance through the cave.
Upon entering the lair, the vampire appears and has Kyle's parents tied up. Kyle uses everything he learned from his the professor to take down the head vampire and bring his family home safely.
They all return home and everything is back to normal in the town and Kyle is dubbed the family Vampire hunter.