Sophie's daughter, Ivy, falls critically ill with multiple viral infections requiring urgent medical attention. Despite her desperate calls, Gavin, Sophie's ex-husband, is preoccupied celebrating his lover's dog's birthday, showing complete disregard for his sick child. Meanwhile, Sophie is confronted with her past as a brilliant medical prodigy, as a colleague urges her to return to her scientific career, highlighting the sacrifices she made for her family. The episode culminates in Ivy rejecting Sophie's comfort, asking for Gavin's lover instead, deepening Sophie's heartbreak and resolve.Will Sophie reclaim her identity as a scientist and leave her painful past behind, or will she give Gavin another chance to mend their broken family?