Elspeth and Angus are horrified when they see a tinker has a little dog tied to his wagon forcing it to run along behind the wagon. The tinker offers to sell them the dog but they don't have enough money can the Nessies help them?
A mad scientist who is obsessed with discovering the Loch Ness Monster plans to use an underwater telescope suspended from a hot air balloon to spot one. Angus and Elspeth must warn the Nessies using their thistle whistles.
Ferocious-Ness jumps out into the road to scare an English lorry driver but his roar turns into a mere squeak. Angus and Elspeth must use their thistle whistles to summon help for poor Ferocious-Ness who now sounds like a mouse.
Elspeth and Angus MacTout are playing by Loch Ness when they find a large mound - but it is not a mound it is Silly-Ness stuck in a hole. The children come up with a plan to free him and receive two thistle whistles as reward.
Mr MacTout has entered a bagpipe competition at the Inverness Festival, but when he gets on the bus Angus and Elspeth see he has left his pipes behind. There is only one Nessie who can help - but it's not Sporty-Ness surely.
When the children are struggling with their Maths homework they summon Clever-Ness to help them. He summons a whole group of Nessies to come and help. However, a holidaying couple spot them and take a snapshot.
When Ferocious-Ness accidentally wrecks Angus and Elspeth's entry into the Loch Ness Monster Look-a-Like contest he has to take its place. Will he be able to keep still and resist the temptation to scare everyone at the show?