Master Assassin Mason's wife is kidnapped by Templars in an attempt to draw the Assassin out for them to kill. Mason must now gather help from fellow Assassins to free his wife and Boston.
When Clark, and Martha are taken captive by Jonathan's revenge-seeking brother Kenneth Kent, he must find a way to put aside his emotions in order to rescue them. But when he sees what his brother has become, things start to get worse for everyone. And for once, Jonathan is forced to fight his brother, without there being anyone to blame, but himself.