Secrets of Sinbad (1986)

The Christian Cowboy became suspicious when Professor Sinbad brought his colorful wagon onto Main Street and began selling his Canyon Root Elixir. Tom and Jenny help the Christian Cowboy solve the mystery of puppets who talked when they were supposed to be silent, plus the theft of jewels, watches, and wallets. It's high adventure, full of intrigue, but also clearly presents the wonderful Good News of the Gospel.