A birthday letter from Tom's father is stolen and a dangerous paper chase ensues.

Tom and Julie are captured by sinister saboteurs with a plan to blow up a troop train.

Tom is caught up in a gun battle between soldiers and saboteurs.

Tom suspects that a Regimental Sergeant Major's grandson fears becoming a soldier.

Tom finally learns the truth about Christopher's 'cowardice'.

A German POW is shot. Should Tom reveal what he knows to the authorities?

A man who has lost his only son in France plans a terrible fate for Germans working at the quarry.

Tom wants to help a shell-shocked soldier recover his memory - but how?

Tom's new friend turns out to be a rich lord as two tinkers are pleased to learn

Tom has a spookily original plan to help rescue Lord Beck from his kidnappers.

In the dark cellars of a nearby castle, an inventor is working on a new weapon

Tom and Julie are trapped in the castle dungeons, and Stan has a hair-raising trip!

Tom embarks on a dramatic airborne chase when Julie is captured by German agents.