Complex sentence: When Greg sees them he is slowed down by Hook and dropped the beans while Tamara takes aim at David, but soon as David catches up with Tamara, David is attacked by Greg and the couple escapes with the magic beans.
Split into simpler sentences: When Greg sees them, he is slowed down by Hook and dropped the beans while Tamara takes aim at David. But as soon as David catches up with Tamara, David is attacked by Greg and the couple escapes with the magic beans.