The second trailer for Avengers: Age of Ultron was released Monday, offering a glimpse at the highly-anticipated Marvel sequel.

‘Avengers: Age Of Ultron’ Trailer

Age of Ultron‘s latest trailer begins with Tony Stark (Robert Downey Jr.) saying in voiceover, “This vulnerable world needs something more powerful than any of us.” Stark is likely speaking about the impetus for creating the Ultron bots, which he believed could replace the Avengers as peacekeepers.

However, as Ultron (James Spader) points out, “Everyone creates the thing they dread,” and he threatens to “tear [the Avengers] apart, from the the inside.”

Fury (Samuel L. Jackson), who appears to still be in hiding as the war between the Avengers and Ultron begins states, “No matter who wins or loses, trouble always comes around.”

Thor (Chris Hemsworth) gets electrocuted in the trailer, falling victim to the Ultron army. He warns his fellow Avengers, “You’ve meddled with something you don’t understand.” Natasha/Black Widow (Scarlett Johansson) is similarly grim, stating, “We have no place in this world.”

Elsewhere in the trailer, there’s a glimpse at what might be Black Widow’s origin story. Also, Maximoff twins Quicksilver (Aaron Taylor-Johnson) and the Scarlet Witch (Elizabeth Olsen) are introduced. It’s uncertain what side the duo will take, although Hulk’s (Mark Ruffalo) red eyes and his fight with pal Tony Stark/Iron Man implies that the Scarlet Witch may have put a hex on him.

Avengers: Age of Ultron hits theaters May 1.