The lads go off for a weekend's fishing in the country, where they meet up with an English hitchhiker who is very mysterious, The lads suspicions grow when he later runs away from the police. However after a large confruntation the lads find out the truth, the young lad turns out to be AWOL from the Army. The lads persuade him to do the right thing and return to his unit. (thetvdb.com)