Complex sentence: The pilot makes clear that the future wanted to abduct Kyle, but accidently took Shawn, incidently leaving Kyle in a three-year coma because of it; when Kyle came out of his coma he was possessed by a force from the future that caused blackouts.
Split into simpler sentences: The pilot makes clear that the future wanted to abduct Kyle, but accidently took Shawn, leaving Kyle in a three-year coma because of it. When Kyle came out of his coma he was possessed by a force from the future that caused blackouts.