What happens if one of Paris' superheroes were akumaized? How will Chat save ladybug? What will it take for him to do so?

When a distortion in space causes ripples, Ladybug(Marinette) and Ladybug(Bridgette) end up in their opposite's universe! Marinette enlists the help of the Quantic Kids while Bridgette gets help from Chat Noir to find their way home. Will they find their way back? Or does this quantum switch play a role in a sinister plan?