S03E13: 'Duel'

Here is what is coming up in the next episode of Heroes, which follows on from the shocking demise of Arthur Petrelli:

Peter and Nathan Petrelli fight against each other.

Sylar holds Claire, Noah, Meredith and Angela hostage at Primatech.

Hiro remains trapped in time – but Mohinder may hold the key to tracking him down.

Nathan wields his power in a move that will have major repercussions for the planet.