Abstract: A twin bladed survival knife having a pair of knife blades and a hollow handle incorporating a plurality of separate compartments for containment of sundry survival objects. The knife has a secondary blade affixed to the handle and a hollow primary blade disposed telescopically over the secondary blade and connected releasably to the handle. A spring actuated, slidable detent disposed in the handle is operative to securely connect the primary blade to the handle and, upon being depressed, is operative to permit removal of the primary blade from the handle. The several compartments in the handle may contain a compass, a fishing reel, an electric light bulb and batteries for furnishing electric power to the bulb. A pivotal, longitudinally extending door on the handle provides access to at least some of the compartments in the handle. A hollow end cap is releasably affixed to the handle and includes one of the compartments as well as a lens for permitting visual access to the end cap compartment.