Relationships deepen as stakes increase. To save a life, Hastings and Ana must do the unthinkable. Gabriella and Daimon journey to his childhood home in search of an old relic….

Ben, Maddie and the other humans deal with the fallout from the attack on the oil rig, while the mermaids reacclimate to their ocean home. Ryn comes back to land…

Oliver and Thea are shocked to hear that Roy Harper is back in Star City. However, when they discover the circumstances of Roy’s return, Oliver and Thea realize that Roy…