As the three Avengers fought off the swarm of flying bats, they noticed something odd about their teammates. Steve Rogers' once fair skin was now ashen and his eyes glowed with a fierce hunger, while Hawkeye's fangs glinted in the moonlight. Tony Stark had sprouted a pair of large, leathery wings and was already taking to the sky to join the swarm.

Natasha, Bruce and Thor quickly realized what had happened - their friends had become vampires. They had to act fast before things got even more out of hand.

Bruce transformed into the Hulk and began smashing the bats out of the air, while Natasha unloaded round after round of silver bullets into any that got too close. Thor drew upon the power of his Asgardian heritage and summoned lightning bolts to strike down the creatures.

Steve, Hawkeye and Tony watched in horror as their friends battled the bats, temporarily distracted from their newfound thirst for blood. As the last of the bats fell to the ground, Natasha, Bruce and Thor hurried to help their friends.

With Bruce's medical expertise and Thor's restorative powers, they managed to cure Steve, Hawkeye and Tony of their vampirism. The three Avengers were relieved to be back to their old selves, grateful to have such loyal friends to help them in their time of need.

As they made their way back to Avengers Tower, Steve, Hawkeye and Tony couldn't help but shudder at the memory of what they had experienced. They were just glad to be back to their normal, non-vampire selves, thanks to the selflessness and bravery of their teammates.