I could just about get on board with a super rich 10 year old boy living by himself with a troop of talking, dexterous, multi-skilled puppies.
I wrote off the mer-pup episode as a group hallucination caused by too much wood smoke on the beach.
But having not seen any episodes for a while, I have just seen one which,
I'm afraid to say, stretched the bounds of reality. Adventure Bay robbed of gravity by a floating alien craft. The pups involved in ridiculously complex and skilled rescues. They may as well have had Ryder jumping over a shark on water skis. 
This is almost as unbelievable as The Archers became during the Sean O'Connor editorial period. The creators are mocking us. 3 year old DD doesn't care, but I just can't suspend my disbelief any more 