In the depths of a crumbling Galactic Empire, the Foundation, established by the visionary Hari Seldon to preserve knowledge and culture, faces its greatest threat yet: The Mule, a mutant with unparalleled mental powers and ambition. Unpredicted by Seldon's psychohistory, The Mule's dominion expands rapidly, converting the opposition into mind-controlled slaves. As the once-solid Seldon Plan collapses, a trio from the Foundation embark on a desperate quest to find the secretive Second Foundation, the last hope to combat The Mule's psychic tyranny. Meanwhile, The Mule, wielding his extraordinary abilities, is on his own quest to find and annihilate the Second Foundation. The fate of the Foundation and the remnants of the Empire hang in the balance as these powerful forces collide.