U.S. Marines, attempting to build a landing field on Halfway Island in the Pacific, unwittingly endanger the secret hideout of a mysterious figure known as The Tiger Shark. The Tiger Shark therefore begins a program of sabotage and murder against the Marines.
Action | Adventure
| Grant Withers | … | Cpl. Larry Lawrernce | |
| Adrian Morris | … | Sgt. Mack McGowan | |
| Ann Rutherford | … | Frances Schiller | |
| Robert Warwick | … | Col. W. R. Bennett | |
| George J. Lewis | … | Sgt. William Schiller [Chs. 1-4] (as George Lewis) | |
| Pat O’Malley | … | Capt. Grayson [Ch. 1] |
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The Fighting Marines: Chapter 1 - Human Targets
The Fighting Marines: Chapter 2 - Isle of Missing Men
The Fighting Marines: Chapter 3 – The Savage Hoard
The Fighting Marines: Chapter 4 – The Mark of the Tiger Shark
The Fighting Marines: Chapter 5 – The Gauntlet of Grief
The Fighting Marines: Chapter 6 – Robber’s Roost
The Fighting Marines: Chapter 7 – Jungle Terrors
The Fighting Marines: Chapter 8 – Siege of Halfway Island
The Fighting Marines: Chapter 9 - Death from the Sky
The Fighting Marines: Chapter 10 – Wheels of Destruction
The Fighting Marines: Chapter 11 – Behind the Mask
The Fighting Marines: Chapter 12 – Two Against the Horde