Yakusoku no Neverland 2nd Season

Synopsis

Emma and Norman devise a plan to rescue Phil and the others at Grace Field House. On Normans instructions, Vincent informs Peter Ratri of a planned attack by airborne balloons carrying the drug to cause demon degeneration so Ratri prepares for the attack. He arranges for all the children to be brought to his headquarters while demons bring down the balloons which cause explosions and fires. Sonju and the Lambda children then launch their attack in a second wave of balloons while Norman, Emma and Ray break into Grace Field House. They save Phil and the others and reach the room containing the elevator to the human world, however Grandma Isabella and the Moms and surround the children with firearms. Surprisingly, Isabella betrays Ratri and the moms follow, the deadly chips in their chests having been hacked and nullified. Peter relies on demon reinforcements, but instead demon civilians cured by Mujika's blood break into the complex. His plans shattered, Peter breaks down, but Emma offers him her hand and an opportunity for everyone to live in peace together.

(Source: Wikipedia)