The team are baffled when an eyewitness, fisherman JeffSimmons, swears that he saw a legendary mermaid on the night aseaweed farm was sabotaged. With no logical explanation for howsomeone could sabotage the farm and get away unseen amongstglowing bioluminescent waters, Esther braces herself for anexcited Humphrey to run wild with the possibility that theirprime suspect could be a mermaid... though it's clear thatsomething else is playing on his mind.Investigating the netsused to sink the seaweed farm, the only clue Humphrey has togo on is a mysterious tropical shell, along with the discoverythat the farm is looking to expand. Could it be a protest fromangered environmental groups? A personal vendetta? Or is avengeful mermaid out to stop those who threaten herseas?Meanwhile, Humphrey and Martha's new house renovationsget off to a bad start when Humphrey's attempt at plumbingleads to disaster. Increasingly distracted, Humphrey comesclean to Martha about the weight on his shoulders as Mr Smithups the pressure from the Hub for his decision. Martha andEsther finally find the time to let their hair down and throwcaution to the wind when their night out ends in skinnydipping. And Kelby continues to gush about his new onlinegirlfriend, though Margo reckons she sounds too good to betrue.
