Complex sentence: At first aligning himself with Riling, Garry finally figures out that his so-called friend is up to no good and switches loyalty to Lufton and his daughters, leading to a bloody showdown.
Split into simpler sentences: At first aligning himself with Riling, Garry finally figures out that his so-called friend is up to no good. He switches loyalty to Lufton and his daughters, leading to a bloody showdown.