Season 4

On May 9, 2014, Disney XD announced that they renewed Lab Rats for a fourth season. There will be 26 episodes this season. Filming started October 2014. The first episode was released on March 18, 2015.

Episodes
Note: This is a list of Season 4 episodes containing Brase. For the official Season 4, click here.
 * Bionic Rebellion (403/404) - March 18, 2015
 * Left Behind (401) - March 25, 2015
 * Under Siege - (402) April 1, 2015
 * Mission Mania (405) - April 15, 2015
 * Forbidden Hero (408) - July 1, 2015
 * Spider Island (409) - July 8, 2015
 * Spike vs. Spikette (407) - July 15, 2015
 * Lab Rats vs. Mighty Med (415) - July 22, 2015
 * Bionic Action Hero (410/411) - August 5, 2015
 * Lab Rats: On The Edge
 * Ultimate Tailgate Challenge
 * Space Colony

Trivia

 * Bree and Chase share their fifth hug in Bionic Action Hero.