Complex sentence: Spider-Man pretends to follow the Moon Knight by telling him to free Frances from the helmet's control, after ending up inside the helmet where he sees Quentin in the helmet as a result of a deal with Dormammu.
Split into simpler sentences: Spider-Man pretends to follow the Moon by telling Moon Knight to free Frances from the helmet's control. After ending up inside the helmet where he sees Quentin in the helmet as a result of a deal with Dormammu.