Complex sentence: Feeling bad at seeing how upset Angela is, Molly and Sean go into the woods to cheer her up but the pair discover the bodies of the other campers in an abandoned cabin, before Angela finds them and ties them up.
Split into simpler sentences: Feeling bad at seeing how upset Angela is, Molly and Sean go into the woods to cheer her up. But the pair discovers the bodies of the other campers in an abandoned cabin, before Angela finds them and ties them up.