My Little Pony 'N Friends The Ghost of Paradise Estate Summary Part 3

Episode 13: The Ghost of Paradise Estate (3)

Pluma uses her powers to dig below ground and find half of the Flashstone Squirk wants and is only doing as Squirk tells her to. As a compromise, Pluma uses the half of the pendant to restore half of Paradise Estate. Baby Hearthrob isn't satisfied but Megan assures they'll get it fixed. Pluma notes that while she doesn't know where the other half of the amulet is, it can be found using the half she has but she has to get it to Squirk right away.
Megan isn't convinced they're out of options and gets Fizzy and Buttons to follow her on a plan. Elsewhere, Squire is enjoying holding Pluma's grandpa prisoner and even jokes about it but has to ruin his lobster friend's uncontrolled laughter by swatting him away. Meanwhile, Spike and Buttons watch as Pluma struggles within herself and hope Squirk will see the signal from the Flashstone half. Feet away, Fizzy is tasked with making a bigger bubble with her magic than she'd ever made before and succeeds in making one for Molly and one for Danny.
They still need a way to get there so Megal summons the sea ponies to help using the shell they gave her. The sea ponies arrive just as Pluma activates her half of the pendant. Back at his lair, Squirk is ready to restore the water level back to where it was before the ponies arrived once he gets the Flashstone. Squirk recieves the signal and orders his lobster friend to seek it out after it gets a taste of its power. The lobster reaches the surface where we learn it's name is Crank. Crank is willing to get the half from Pluma but Pluma is making him work for it but when Crank tries Buttons fires her magic to taunt him.
Down below the surface, Megan, Fizzy, and a few others have difficulty slipping past Squirk as he races to the surface. The group reach Pluma's grandpa's cell and use a spear to break him out. Back on land, Crank finds out that Squirk already is mad at him but manages to grab the half of the Flashstone. Pluma still isn't willing to give it up so easily and grabs the string, leading to a tug-of-war between them. Squirk tips the battle in his favor and gets Spike, Pluma and Buttons trapped in a clam shell before finally obtaining half the Flashstone.
The group race to escape but Squirk is too quick and blocks their escape. Megan and the others are trapped inside an ever-closing dinosaur jaw held by seaweed that is being cut by turtles up above. Pluma tries to shapeshift but the ropes are too tight and even Megan fears it's the end of Ponyland as they know it. Down below the surface, Crank and Squirk are moving along and Squirk just needs to find the other half of the pendant but wreaks havoc with the half he currently holds and uses a song to share his excitement.
As the song ends, Crank joins in and they find the other half of the pendant. As he claimed, Squirk begins flooding the land and now the half of Paradise Estate is in danger but Gusty is sure they'll stop it.