On Arrow Season 2 Episode 12, Arrow attempted to teach Roy how to control his strength and anger from the Mirakuru and Moira had an unexpected offer placed before her.
Oliver learned yet again that what works for him doesn't work for others when he tried, and failed, to use Yao Fei's training methods with Roy.
Watching a boy pumped up with Mirakuru had entertaining results. Roy's trigger points were much different than Oliver's and Oliver had to use something he learned on the island to turn the tide in his favor.
Oliver needed Roy's help when The Bronze Tiger was given a way to escape prison so that he could steal something very important and very near and dear to both Oliver and Roy.
Elsewhere, Walter invited Moira to dinner and had an enticing and surprising proposition that could change her future and that of Starling City. Thea also had some surprising words for her mother that help her make the right decision.