Fantastic Four by Jonathan Hickman: The Complete Collection #4

Synopsis

Story takes placed in an alternate universe where Nazis have won World War II and reign over America and probably much more of the world. Working for Hitler, Reed Richards flies into outer space with his partners Susan Sturm, Johnny Sturm, and Benjamin Grimm. They are bombarded by cosmic rays and crash to Earth, where they discover they all have powers. At a grand Hitler celebration, Grimm kills Hitler, then he, Susan and Johnny perish as they fight each other. Using the Infinity Gauntlet, Reed goes out of control and destroys the Earth and beyond. Later, he helps form the Council of Reeds.