My Cool Family

In the first part of the series, we met Rosie Cool, Tre's granddaughter. She followed Green Day on their last tour and married Billie's grandson, Jack Armstrong. They had two children, Jimmy and Frankie Armstrong-Cool, and one stuffed monkey, Mr Whirly.
Tre passed away and Rosie was distraught.
In the second part, Rosie met her half-brother, Edwin and got to know him. Frankie loved him. Then, Frankie was kidnapped. The kidnapper came back to get Jimmy, but fell out of a window and died. He turned out to be Edwin. Eventually, Frankie was found, injured and unconscious. She was saved, but scarred. Rosie found out that she was pregnant again.
However, in the midst of their joy, Adrienne discovered she had advanced breast cancer.
In part three, Adrienne undergoes chemotherapy so she can live to see her next great-grandchild. Jack and Rosie prepare themselves and their children for the new baby and, unbeknownst to Billie and Adie, help Mike, Joey, Jake and Emma plan one final surprise for Billie Joe and Adrienne.