Under the Beach (The NK Tales)

Plot
Following the events of the previous Music lesson, Shane and The Asgardians think Naomi's gone into hiding so they track her down but when they arrive they find themselves in the town of Skegness, they find her with a new attitude and a working portal underneath the beach and the only way to access it is by having two access discs.

Trivia
This is the first episode in a two parter