William "Spider" Scott has a spare "Y" chromosome in his cell structure, which makes him very tall but also gives him a compulsion to steal.
Cast:Stephen Yardley , Don Henderson , Vivienne McKee , Dennis Blanch , Mark Dignam , Oliver Maguire , Johnny Shannon , Fiona Curzon , William Squire , Brian Croucher , Peter Ellis , Paul Freeman , Alan Rowe , Glyn Houston , Sarah Bullen , Ronald Lewis , Chris Jenkinson , John Welsh
Spider has bought a half share in a small executive aircraft which he flies with his partner. One of his first customers is an acquaintance from his days of crime. He think nothing of this until his best friend is found dead in the Thames.
Has Riesen become involved with American crime and, if he really has, what impact will this have on Spider?
Spider is forced to fly up North en route to Russia with a bomb on board. This turns out to be the decoy at the airport for a half a million pound robbery.
Narrowly escaping the aeroplane explosion Spider returns home to find Reissen's body being loaded into a van. Then Bulman turn up to save him being drowned.
Spider is invited to sit on a prison enquiry board headed by a rich merchant banker. Bulman and Willis continue dogging his tracks, with Bulman becoming ever more distracted by the need to nick Spider.
Caught up in a situation beyond his control, Spider finds that Quilter has been murdered and Bucket- Face Smith has disappeared. Then he finds something nasty in the study.
A trail of dead bodies seems to follow Spider as he attempts to get himself out the situation he has been caught up in.
Imprisoned, Spider is involved in a conspiracy to spring Norden and himself. They succeed in breaking out of jail and Norden disappears, leaving behind a dead warden.
Bulman is hot on the trail of Spider who finds himself involved in a hostage situation. The body count increases as two detectives are killed.
Maggie frees Spider but, when he is released, he is asked once more to risk his life to capture a foreign agent.