Complex sentence: When King Charles I is captured by Roundhead forces led by the tyrant Colonel Judd and his right-hand man Captain Sylvester, it is up to a band of locals loyal to the King to try to rescue him.
Split into simpler sentences: When King Charles I is captured by Roundhead forces led by the tyrant Colonel Judd and his right-hand man Captain Sylvester. It is up to a band of locals loyal to the King to try to rescue him.