An Army colonel leads a guerrilla campaign against the Japanese in the Philippines.

A young woman receives an invitation from the Governor of an island prison to spend a week with him. She does so, but conceals the fact that her husband is being held as a convict on the island.

Medical researchers Jerry Evans and Walt Hedges are assigned by a pharmaceutical company to work at a secret laboratory on a remote South Pacific Island in order to produce penicillium, the mold from which the magic drug penicillin is derived.

Construction workers in World War II in the Pacific are needed to build military sites, but the work is dangerous and they doubt the ability of the Navy to protect them. After a series of attacks by the Japanese, something new is tried, Construction Battalions (CBs=Seabees). The new CBs have to both build and be ready to fight.

A movie serial in 12 chapters: The famous comic strip character is on a mission to protect a secret tunnel passage between China and India.

After a demonstration of new PT boats, Navy brass are still unconvinced of their viability in combat, leaving Lt. "Rusty" Ryan frustrated. After the attack on Pearl Harbor, however, Ryan and his buddy Lt. Brickley are told they can finally take their squadron into battle. The PT boats quickly prove their worth, successfully shooting down Japanese planes, relaying messages between islands, and picking off a multitude of enemy ships.

During Japan's invasion of the Philippines in 1942, Capt. Henry Lassiter, Sgt. Bill Dane and a diverse group of American soldiers are ordered to destroy and hold a strategic bridge in order to delay the Japanese forces and allow Gen. MacArthur time to secure Bataan. When the Japanese soldiers begin to rebuild the bridge and advance, the group struggles with not only hunger, sickness and gunfire, but also the knowledge that there is likely no relief on the way.

Shortly before Pearl Harbor, American opportunist Jones and partner Johnny are in China to sell oil to the invading Japanese army. Cynical about the sufferings of the Chinese, Jones meets compassionate teacher Carolyn Grant while travelling cross-country to Shanghai. Sparks fly between these strong-willed characters, neither budging an inch. But when Jones witnesses a Japanese atrocity, his feelings toward his customers (and Carolyn) begin to change...