Complex sentence: He begs for Danny's help to cure it, something the trio aren't above doing, so in order for Danny to help him, Vlad infects Sam and Tucker with the same illness before falling unconscious.
Split into simpler sentences: He begs for Danny's help to cure it, something the trio aren't willing to do. In order to force Danny to help him, Vlad infects Sam and Tucker with the same illness before falling unconscious.