Betty La Fea, La Historia Continúa

Five years ago, Betty and Armando celebrated Mila's 15th birthday. In the middle of the joyful family celebration, Mario Calderón returns, and his presence generates a lot of tension between Armando and Betty. Meanwhile, Marcela and Nacho form a secret alliance. After finding Marcela and Armando in a compromising situation, Betty decides to leave him.

Hugo leads a strike by the workers' union at Ecomoda, while Betty, Marcela, Mario, and Esteban visit Pascual to convince him to sell them the warehouses. Also, Mila has new proposals to help Ecomoda. Hermes finds Betty's diary and deciphers the past. After a night out with her friends, Betty ends the night in an unexpected way.

Betty wakes up with no memory of the night before and is surprised that she is not at home. Mila discovers Nacho's true colors. Will he take the opportunity to confess his identity to everyone? Armando decides to visit his daughter and Betty, but he meets Hermes, who stops him in his tracks, requesting for explanations about what he read in Betty's old diary.

Mila reads Betty's diary and completely breaks down. Full of resentment towards her father, she demands him to sign the divorce papers. Will this mean the end of their relationship? Time later, Betty enjoys in Cartagena with a mysterious man... Who could it be?