The episode picks up immediately after the Season 3 finale cliffhanger. It juggles three main storylines:
Meanwhile, the rest of the Cooper family is adjusting to their own new beginnings. Mary (Zoe Perry) and George (Lance Barber) are dealing with the aftermath of their parenting misadventures, while Georgie (Montana Jordan) is trying to find his place in the world. Missy (Raegan Revord) gets some delightful character development, showcasing her growth from a pesky little sister to a more empathetic and understanding sibling. young sheldon s04e01 aiff