The London sleuth (John Howard), his fiancee (Heather Angel) and sidekick pluck a Scotland Yard colonel (H.B. Warner) from a lion pit.
Good entry in the Drummond series, though not a lot totally is relevant. The Africa in the title is rarely mentioned (except it can be reached in a hop skip and a jump by seaplane apparently). Drummond is after an old nemesis who has captured his boss Colonel Nielsen and taken him to Africa. A couple of new people come in to replace some old roles It's all JUST ok.
1. Amazon Video : Rent from $1.99, Or $0.00 with a Prime membership