Frankie Kelly is the soda jerk and embryo scientist in Midvales only drugstore. Two murders and an attempted killing suddenly swing Midvale into national prominence. Frankie and his pal, Jefferson, become involved when a wounded gangster starts to tell them where $300,000 in stolen loot is hidden, but he is murdered before he can give them all of the information. The search is on.

"XTRA! XTRA!... Frankie's In Another Jam... but this time it's really a JAM!"