Episode 1
Young Tom Dawes is enthralled by the sight of a fine schonner sailing up the Avon Gorge. Soon he and his father become mixed up in the mystery of a missing girl, a half recorded message, and intruders at Bristol Docks...
Episode 2
The adventure continues as Sid Dawes finds the runaway girl, Lynn, and Tom learns more about the mysterious recorded message. Trouble is looming for them all: the villainous Colonel Gaines has become suspicious - and he's a dangerous enemy.
Episode 3
Chased by the men from the sailing ship, Tom and Lynn find an unusual refuge. Aboard the Patriot, Bert makes a frightening discovery.
Episode 4
Tension mounts as Tom tries to find where Lynn's kidnappers have taken her. Confronted by Colonel Gaines, she receives a clue to the mysterious recorded message...
Episode 5
With Southways now out of the way, Gaines' men turn their attention to Lynn. Young Tom picks up the trail at last...
Episode 6
Tom and his father are getting ever closer to finally solving the mystery of Lynn's disappearance...
Episode 7
Sid and Tom chase the evil Colonel Gaines, who is carrying captives aboard his sailing ship.
