Captain America: The First Avenger (2011)
Captain America (also known as Steve Rogers) was a sickly, frail individual who was specifically selected for a super solider program for his heroic attitude and self-sacrificing bravery. The serum and “Vita-Ray” treatment greatly enhanced Steve physical abilities – increased strength, reflexes, durability and self healing. His shield is created by Stark Industries and is made from a rare, near-indestructible metal, vibranium.
Captain America, piloting a damaged HYDRA war ship, crashed in the Arctic and laid frozen in ice for 70 years.
The Avengers (2012), Captain America: The Winter Soldier (2014), Avengers: Age of Ultron (2015), Captain America: Civil War (2016)
He was discovered by the Agents of S.H.I.E.L.D., brought in to recover and asked by Nick Fury to join the Avengers initiative.