The BBC have released the synopsis for part one and two of the second story of The Sarah Jane Adventures series 5, titled “The Curse of Clyde Langer”.

Part One

It's raining fish from the skies, and Sarah Jane's investigations lead the gang to the Museum of Culture, where the ancient god Hetocumtek may offer answers.

But when Clyde acts the fool once too often, family and friends savagely turn against him, and he is thrown out of their lives!

Part Two

The curse of Clyde Langer continues in the second part of this gripping story from the award-winning The Sarah Jane Adventures.

In today's episode, Clyde is alone and abandoned on the streets of London, living rough, cold and hungry. One person reaches out to him, but as they become friends, he's warned about the legendary Night Dragon.

In Bannerman Road, Sky knows something's wrong – why do Sarah Jane and Rani suddenly hate Clyde?

Sarah Jane is played by the late Elisabeth Sladen, Clyde by Daniel Anthony and Rani by Anjli Mohindra.