Three Genius Babies Are Looking for Daddy 4

Pregnant again, she returns to her husband's wealthy estate with their three sons, only to face an ambitious former stepmother scheming for the family fortune. After exposing the woman's fraud with a DNA test, peace seems restored—until her mother arrives with her sweet-faced sister. But beneath the sister's gentle smile lies a traitor secretly conspiring with a dangerous enemy. With her loving husband and clever kids by her side, can she protect her family before the trap snaps shut?