The first Captain America: Civil War trailer is here, and it's making us feel all the feels.

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Bucky Barnes is back, and Steve Rogers is determined to make sure his 1940s pal stays alive. The Winter Soldier caused some terrible carnage, but now that Buck has his memory back, Caps number one priority is keeping Hydra's former weapon out of a jail cell.

Unfortunately, there are those who won't be particularly pleased with the First Avenger's "vigilante" tendencies. When the Sokovia Accords come across the table, Caps will not be pleased at the government's new level of superhero oversight. Tony Stark, on the other hand, will think Steve needs to leave the search for the Winter Soldier in the hands of the authorities.

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Well, that draws a line in the sand, now doesn't it? With Falcon, Hawkeye, and Scarlet Witch by his side (check out his squad at 1:47), it looks like Caps will do whatever it takes to save his friend. Iron Man, Black Widow, and someone with a massive amount of firepower are out to stop them. Ultimately, the entire affair could cost War Machine his life.

"Sorry, Tony," Caps says. "I wouldn't do this if I had any other choice. He's my friend."

"So was I," Stark replies.

Stop, guys, you're breaking our little Marvel hearts!

Check out the trailer below and tell us what you think! Catch Captain America: Civil War on May 6.

Tags: Captain America 3 Movies Marvel