episode Info: Amy goes back to work for the first time since having Charlie, leaving Bob home with the kids. Teddy invites Spencer over for a study date since all the kids are supposed to be home helping Bob with Charlie while PJ and Emmett try rehearsing. Unfortunately, Bob falls down the stairs, leaving Teddy to look after Charlie and Gabe while PJ takes Bob to the hospital..
The Duncan family are adjusting to the surprise birth of their fourth child, Charlie. When parents Amy and Bob return to work they put their latest addition in the care of her three older siblings. —Anonymous
Teenagers Teddy and PJ Duncan and their 10-year-old brother, Gabe, are enlisted to help raise the newest addition to their family, Charlotte (nicknamed "Charlie"), when their parents return to work. With their parents juggling full time careers, they pitch in, getting very familiar with baby formula, burps, clothes, and babysitting while navigating typical teenage life. —Official site
High-School teenagers, Teddy and PJ Duncan, and their 10-year old brother, Gabe, are responsible for getting used to the newest addition to their family. A new baby named Charlie. When their parent's have to return to work, the children have the responsibility to watch over Charlie and take care of her all while trying to survive their teenage lives.
Set in Denver, Colorado, the series focuses on the Duncan family, who are still adjusting to the birth of their fourth child, Charlotte "Charlie" Duncan (Mia Talerico). When parents Amy (Leigh-Allyn Baker), a nurse, and Bob (Eric Allan Kramer), an exterminator, return to work, they ask their three older children-PJ (Jason Dolley), Teddy (Bridgit Mendler), and Gabe (Bradley Steven Perry)-to help raise their little sister. At the same time, Teddy, PJ, and Gabe try to deal with school and general social challenges in their lives. The events in each episode become material for a video diary that Teddy is making for Charlie. Teddy hopes the videos will provide useful advice for Charlie after they have both grown up and Teddy has moved out. At the end of each video, she (and/or other cast members) says, "Good luck, Charlie" or may even say it indirectly such as "Wish them good luck, Charlie." During the movie, Amy reveals to Teddy that she is pregnant with.