On his ninth birthday, young Gwyn (Osian Roberts), who lives on a remote hill farm in Wales, receives five strange gifts from his grandmother (Siân Phillips): a piece of seaweed, a yellow scarf, a tin whistle, a metal brooch and a small broken horse. Gwyn offers the brooch to the wind and receives back a tiny silvery spider - Arianwen, the snow spider - confirming that, as his grandmother had already guessed, he has inherited magical powers from his Celtic ancestor Gwydyon, a powerful magician whose exploits are described in the fourth book ("Math Son of Mathonwy") of the Mabinogion. With the help of the snow spider, Gwyn embarks on adventures involving other worlds of snow and silver, as he attempts to solve the five-year-old mystery of his sister Beth's disappearance in a snow storm.

Children's drama series following the contemporary adventures of a boy magician.

In a remote part of the Welsh countryside in the late 1980s, Gwyn and his family remain haunted by the disappearance of his sister, Bethan, in a snow storm five years before. On his ninth birthday, Gwyn's eccentric grandmother, Nain, gives him five unusual gifts - sparking off an adventure when she declares 'Time to find out if you're a magician!'

A man, stuck in a dead end job he hates, remembers back to good times he had in the past.