Season 4: Bionic Island
The fourth season of Lab Rats has a new story location – Davenport’s Bionic Academy, a training facility on a remote island that brings higher stakes and over-the-top missions for Leo and his super-human step-siblings, Chase, Adam and Bree – and a new series title, “Lab Rats: Bionic Island.”
Episodes
1 Bionic Rebellion (1) Mar 18, 2015 
2 Bionic Rebellion (2) Mar 18, 2015 
3 Left Behind Mar 25, 2015 
4 Under Siege Apr 1, 2015 
5 Bionic Dog Apr 8, 2015 
6 Mission Mania Apr 15, 2015 
7 Simulation Manipulation Apr 22, 2015 
8 Forbidden Hero Jul 1, 2015 
9 Spider Island Jul 8, 2015 
10 Spike vs. Spikette Jul 15, 2015 
11 Lab Rats vs. Mighty Med Jul 22, 2015 
12 Space Elevator Jul 29, 2015 
13 Bionic Action Hero (1) Aug 5, 2015 
14 Bionic Action Hero (2) Aug 5, 2015 
15 One of Us Aug 12, 2015 
16 Bob Zombie Sep 30, 2015 
17 Human Eddy Oct 14, 2015 
18 The Curse of the Screaming Skull Oct 21, 2015 
19 On the Edge Nov 11, 2015 
20 Ultimate Tailgate Challenge Dec 2, 2015 
21 And Then There Were Four Jan 13, 2016 
22 Space Colony Jan 20, 2016 
23 The Vanishing (1) Feb 3, 2016 
24 The Vanishing (2) Feb 3, 2016