Two young siblings flee the Chernobyl disaster with their parents, but the Communist party is on their heels. Meanwhile, the friends and family they were forced to leave behind must contend with a disinformation campaign that's determined to pretend nothing is wrong—even as deadly radiation spills into the air.

Twelve-year-old Lidia is outside her grandfather's house when planes fly overhead, bearing the Nazi cross on each wing. Before the bombs hit the ground, Lidia realizes her life is about to change forever. Poland has fallen under German occupation, and her father makes the brave decision to join the Polish army to fight against the Nazis. Lidia wants to follow him into war, but she's far too young, and she's needed by her mother and brother. After her family returns to Warsaw, Lidia continues to play the piano, but she also wants to aid the Jewish people held captive in the Warsaw Ghetto.

Although the mission school bans all that is Navajo, Ned secretly clings to his native language and culture. Proudly joining the U.S. Marines in 1943, he becomes a top-secret Navajo Code Talker. During bloody battles for Japanese islands, Ned and his brave band of code-talking brothers save thousands of lives using Navajo encryption the enemy never cracks.

Ten concentration camps. Ten different places where you are starved, tortured, and worked mercilessly. It's something no one could imagine surviving. But it is what Yanek Gruener has to face. As a Jewish boy in 1930s Poland, Yanek is at the mercy of the Nazis, who have taken over. Everything he has and everyone he loves have been snatched brutally from him. And then Yanek himself is taken prisoner - his arm tattooed with the words Prisoner B-3087.

Lida thought she was safe. Her neighbors wearing the yellow star were all taken away, but Lida is not Jewish. She will be fine, won't she? But she cannot escape the horrors of World War II. Lida's parents are ripped away from her and she is separated from her beloved sister, Larissa. The Nazis take Lida to a brutal work camp, where she and other Ukrainian children are forced into backbreaking labor. Starving and terrified, Lida bonds with her fellow prisoners, but none of them know if they'll live to see tomorrow.