Richard III, Part 2: The Boar Hunt - S1.E15

Nothing can now check Gloucester's devious and ruthless struggle to possess himself of the Crown. His brothers are dead, the Queen's party has been destroyed, and Richard, in his new guise as Lord Protector, has seized his two young nephews, Edward V and his small brother Richard of York, and imprisoned them in the Tower. With the powerful aid of the Duke of Buckingham, Richard is ready now to overthrow the last obstacles between himself and his Coronation.