December 6, 1941: Best friends Frank and Stanley have it good. Their dads are Navy pilots stationed at Pearl Harbor in Hawaii, and the boys get a front-row view of the huge battleships and the sparkling water. Yes, World War II is raging in Europe and in Asia, but the US isn't involved in the war, and the boys are free to dream about becoming comic book creators. They've even invented a superhero of their own, in the style of Batman, Superman, Captain America, and other stars of the Golden Age of Comics. December 7th, 1941: Everything explodes.

September 11, 2001, New York City: Brandon is visiting his dad at work, on the 107th floor of the World Trade Center. Out of nowhere, an airplane slams into the tower, creating a fiery nightmare of terror and confusion. And Brandon is in the middle of it all. Can he survive - and escape? September 11, 2020, Afghanistan: Reshmina has grown up in the shadow of war, but she dreams of peace and progress. When a battle erupts in her village, Reshmina stumbles upon a wounded American soldier named Taz. Should she help Taz - and put herself and her family in mortal danger?

It's the height of World War II. Michael O'Shaunessey, son of the Irish ambassador to Nazi Germany, lives with his family in Berlin. But Michael, like his parents, is a spy. He joins the Hitler Youth, taking part in their horrific games and book burning, despising everything they stand for but using his insider knowledge to bring important information back to his parents and the British Secret Service. When Michael is tasked to find out more about Projekt 1065, a secret Nazi mission, things get even more complicated.

It's 1944 and the world is at war. Hideki lives peacefully with his family on the island of Okinawa, near Japan. Until the day WWII reaches their door. Hideki is drafted into the "Blood and Iron Imperial Corps" to fight for the Japanese army. He is handed two grenades and a set of instructions: go off into the jungle, and don't come back until you've killed an American soldier. Meanwhile, young American soldier Ray Majors has just landed on the beach in Okinawa. He doesn't know what to expect, or if he'll make it out alive, but he knows he must keep moving forward.

Akira is riding her horse in the California woods when a wildfire sparks and grows scarily fast. Owen and George like spotting polar bears on the snowy Canadian tundra. But when one bear gets too close for comfort, do the boys have any chance of surviving? Natalie hunkers down at home as a hurricane barrels toward Miami. When the floodwaters crash into her house, Natalie is dragged out into the storm—with nowhere to hide. All four are swept up in the devastating effects of climate change. They are also connected in ways that will shock them—and could alter their destinies forever.