I think the episode was too lengthy and it sort of dragged, some scenes were just filler.
The highlights in the ep are:
- Pym! Pym is alive though forced to live with a fat fisherman.
- Merlin visits a guy who looks a bit like Goblin King from the Hobbit ;) and lives underground in some crossover between Moria and goblin caves in the Misty Mountains. I found it quite funny as a Tolkien fan.
The other world appears to have the Coronavirus. They don't shake hands because of "germs", they wear masks too.
