In the season three finale, tragedy comes to the Rizzoli’s when Thomas, Baby TJ and Frost are caught in the basement of a collapsing building. Frost was there to take pictures cause they suspected that the recent murder of the handy man was connected. Maura’s mother Hope returns and his met with an angry Maura. However she later tells her that she will donate the kidney, but does not want her sister to ever know. All of them come out of the building, Tommy with head injury, Frost with arm injury and the baby, perfectly healthy.