The Billionaire Mom's Test

Celeste Sterling, founder, ill. Hides identity to test sons for heir. Eldest and second sons, believing no resources and treatment will drain savings, treat her with disdain, seeing her as burden. They kick Celeste and youngest son out. Only youngest son, Sean Sterling, cares. Celeste moves to hospital. Older sons hear tycoon recovering, arrive to curry favor. Stunned, they find tycoon is their mother. Partnerships terminated, plunging them into crisis.