Leonardo (2011)

Time Waits (1x7)

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After a Swiss clock-maker bringing a pocket watch to Piero drowns Leonardo finds the watch and discovers that it is magic and that it runs backwards,enabling the user to travel back in time. Machiavelli makes a copy which he tries to auction and this comes in useful when a gang of heavies pursue Leonardo for the real thing,which he is able to return to its maker's mother so that she can see her son again.