After the entire summer break without seeing any of Mr. Davenport other than for food, he finally re-emerges from his lab with an all-new Lab Rat, Project D, AKA Dilli Davenport, who Donald secretely adopted. Bree is exited that she has a sister. Then Bree and Dilli use there bionics to annoy Adam and Chase. They get angry and fight back. Dilli sees what she did wrong and tries to fix it. But Chase is still mad at her making upset and mad enough run away. Bree gets angry when she finds out Chase drove Dilli out. So Chase and Leo try to find Dilli before Mr. Davenport and Tasha get home.
- Tyrel Williams as Leo Dooley
- Spencer Boldman as Adam Davenport
- Kelli Berglund as Bree Davenport
- Billy Unger as Chase Davenport
- Laura marano as Dilli Davenport
- Hal Sparks as Donald Davenport
- Angel Parker as Tasha Davenport
- Will Forte as Eddy
- Madison Pettis as Janelle
- This episode is the first episode with Dilli and Tasha as main cast.
- In this episode, Leo and Janelle are dating.
- This episode makes official that Adam, Bree and Chase are really Projects A, B, and C, as Dilli is Project D.
- Chase is constantly attacked or hurt badly in this episode, yet his Commando App never turns on.