Marcus has been awoken, and it is Kraven’s job to find new recruits. He manages to form a few, and find some undiscovered Vampires as well. One is Severus Snape. Michael and Selene have been MIA since the death of Victor. Due to the assassination of Lucian, the Lycans are after new wolves also. That’s how Remus Lupin is found. If you’ve not seen Underworld, all is explained here. Spoilers.