It's a Matter of Principal

1 How the Mighty Med Have Fallen Part 1 & Part 2 2 Lair, Lair 3 Mighty Mole 4 The Claw Prank Redemption 5 Do You Want to Build a Lava-Man? 6 Storm's End 7 Future Tense 8 Stop Bugging Me 9 Less Than Hero! 10 Oliver Hatches the Eggs 11 Sparks Fly 12 Wallace and Clyde: A Grand Day Out 13 The Key to Being a Hero 14 New Kids Are the Docs 15 It's a Matter of Principal 16 Living a Dream 17 Lab Rats vs. Mighty Med 18 Thanks for the Memory Drives 19 The Dirt on Kaz & Skylar 20 The Mother of All Villains 21 Episode 21 22 Episode 22