Complex sentence: Steve Rogers returns with Osborn again and tells everyone that it's Osborn's turn to pay for his crimes and gives Bucky back the shield, telling him he's the Captain America of the modern age.
Split into simpler sentences: Steve Rogers returns with Osborn again and tells everyone that it's Osborn's turn to pay for his crimes. Steve gives Bucky back the shield, telling him he is the Captain America of the modern age.