The Day That Went Askew

S1:E17 'Moon Ring 2' AU. It had been a weak shot to begin with, canal water to undo a Moon Ring's defensive blast? It shouldn't have been a surprise when it didn't work, but now they're stuck with an unconscious Mermaid, they're untrained, their options are limited and tensions are high... Moon Rings are dangerous. Too bad it took this much to make that really sink in.