Years ago, Eric Masterson laid down his enchanted mace -- and his life -- in defense of his fellow Avengers. From the halls of Valhalla to the streets of New York, scant has been heard of the hero known as Thunderstrike since,until now.

Years ago, Eric Masterson laid down his enchanted mace -- and his life -- in defense of his fellow Avengers. From the halls of Valhalla to the streets of New York, scant has been heard of the hero known as Thunderstrike since,until now.