When a college student shows up claiming to be a relative, Kira is forced to tell a family secret she’s been holding for years. Meanwhile, Marisa and Ernie give K.C. tips on how to handle her first date with Darien.
- Zendaya as K.C. Cooper
- Veronica Dunne as Marisa Miller
- Kamil McFadden as Ernie Cooper
- Trinitee Stokes as Judy Cooper
- Tammy Townsend as Kira Cooper
- Kadeem Hardison as Craig Cooper
- Brett is mentioned twice.
- K.C. finds out she has a cousin.
- Kira mentioned she had a sister that joined The Other Side.
- This episode starts an episode arc.
- The new spy gadget, electronic balls, are introduced.
- An agent was kidnapped by the other side in this episode, however, K.C. came to the rescue and saved his life.
- The working title for this episode was Can You Keep a Secret.
- May 20, 2016 (Spain, Portugal)
- June 5, 2016 (Latin America, Brazil)
- July 20, 2016 (Israel)
| To view the Do You Want to Know a Secret gallery, click here.