When the Grim Reaper is able to acquire an ancient power, he traps the Avengers in another dimension. Will Earth's Mightest Heroes be able to stop this powered-up Grim Reaper?
When the Grim Reaper is able to acquire an ancient power, he traps the Avengers in another dimension. Will Earth's Mightest Heroes be able to stop this powered-up Grim Reaper?