As Ben Baxter continues to write his diary, we find him faced with several more curious crimes and the odd mystery. He is helped as usual by his pal Johnny, his sister Katie and Chippy. Ben and Johnny return to being store detectives; this time, however, they have been invited back by the store manager. Knowing they have solved crimes in the past, the manager has offered to show them his store's crime prevention set up. However, things don't run as...