Seth, Nevin, and Lil’ Lemon discover that Nevin’s Granny Grancie, has an estranged sister and best friend, Granny Grindle. Best friends Nevin and Lil’ Lemon, with Seth’s help, vow to make the Grannies best friends again! But getting these old friends back together may test Nevin and Lil’ Lemon’s friendship.