In this episode the boys are focussed on a hoard of 1400 Roman bronze coins unearthed near Turvey, Bedfordshire in December 2006. The coins date from the middle of the 4th century towards the end of the Roman Empire in Britain. Some coins in the hoard have a propaganda message stamped across them: ‘happy days are here again’; others are emblazoned with the names of two Roman usurpers Agnentius and Decentius. Gary and Gordon are keen to return to the site with their state-of-the-art technology in the hope of finding missed coins; Gordon even believes there’s an opportunity to find a whole new hoard.

Gordon and Gary are catapulted back to Medieval times to follow up on a hoard of 19 Plantagenet short cross pennies. The farmer who found the coins, Peter Brown, only has a low-level detector so needs the boys’ help to find anything he missed. Gary in particular is very excited about the dig, and is given the job of sourcing a special vehicle for the occasion… Something that Gordon may regret allowing!