On last night's episode of "Arrow," Oliver and Thea Queen bonded on the Island in the television equivalent of a comic series' zero issue, as that pair faced down a multitude of dangers as they got to know each other while battling a 'resurrected' Slade Wilson.

"Arrow" Recap: The "Return" of Slade Wilson and the Rise of Thea Queen

Next week, Oliver heads to Nanda Parbat for a showdown with Ra's al Ghul and the League of Assassins, while Ray Palmer dons his ATOM armor for the first time -- both developments highlighted in this new promo.