 Julius Chancer, young assistant to the historical researcher Sir Alfred Catesby-Grey, becomes embroiled in an adventure to discover the lost Rainbow Orchid, largely due to the machinations of scheming Daily News reporter William Pickle.He is accompanied by silent film actress Lily Lawrence, her American agent Nathaniel Crumpole, and Tayaut, a French stunt-pilot.The search for the orchid is opposed by the devious Evelyn Crow, right hand associate to scheming businessman Urkaz Grope.