In Episode I, Herobrine was Watching...In Episode II Herobrine had his Revenge...In Episode III Adam & Marky went on the Hunt for Herobrine...Now in Episode IV Adam & Marky meet the powerful and wise Notch. With new weapons and new creatures, join our heroes on an epic adventure that spans the Over World and the Underworlds in Episode IV: "Herobrine and the Battle of Worlds".