When an interdimensional rupture threatens to unravel reality, the fate of the world is suddenly in the hands of a most unlikely hero: Evelyn (Michelle Yeoh), a flustered immigrant mother. As bizarre and bewildering dangers emerge from the many possible worlds, she must learn to channel her newfound powers and fight her way through the splintering timelines to save her home, her family, and herself in this big-hearted and irreverent adventure through the multiverse.