Bill and Allison ready themselves for a romantic cruise around the Channel Islands to celebrate their honeymoon. But their plans are stifled by a last minute assignment for Bill to follow the trail of arch enemy Slade - who is ruthless in his search for a hidden map to the ancient treasure of Andrea. The children join the honeymooners and soon enough discover the whereabout of the map thrusting them headfirst into an exciting high-stakes race to uncover the treasure. (thetvdb.com)