In the upper image, we see a wealthy middle-aged man and a boy with too much innocence for his own good go fishing with a blue creature that didn't want to go on the ship in the first place.

And in the lower image, we see a wealthy middle-aged man and a boy with too much innocence for his own good go fishing with a blue creature that didn't want to go on the ship in the first place.

Also, both episodes end with a body 50 feet beneath the ocean surface.

Glad i'm not he only one who thought of Spongebob when Greg said that line.