Maddie notices the sea lions acting strangely at the docks and later they notice all the fish swimming towards shore.
Ryn runs out of the store after hearing the signal and later Maddie, Ben, and Ryn bring the new mermaid they saved to see Helen.
Maddie returns home to find her parents preparing for an awkward dinner.
Ryn is trying to buy some seafood on the docks when she notices the strange disturbance again.
Ryn, Maddie, and Ben all independently converge to save several beached whales and later they track Ryn to the beach after the sonic disruption and find several of her kin washed ashore.
Ted follows Dale out of the town hall after his hearing goes bad.
Xander and Calvin head to the bar where they strike up the conversation with Nicole Martinez, a beautiful woman who is new in town and very curious about Xander's boat.
Nicole gets a text from Xander asking to meet again and then calls to report in to her superiors.