Mystery Science Fair 201X 1 Season 43 Episode

Episode #1

Let's Be Heroes

Episode #2

Let's Be Friends

Episode #3

You're Everybody's Sidekick

Episode #4

We Messed Up

Episode #5

Jethro's All Yours

Episode #6

You're Level 100!

Episode #7

Sibling Rivalry

Episode #8

I Am Dendy

Episode #9

Do You Have Any More in the Back?

Episode #10

My Dad Can Beat Up Your Dad!

Episode #11

You Get Me

Episode #12

You Are Rad

Episode #13

Just Be a Pebble

Episode #14

Presenting Joe Cuppa

Episode #15

We've Got Pests

Episode #16

Legends of Mr. Gar

Episode #17

Know Your Mom

Episode #18

We're Captured

Episode #19

Face Your Fears

Episode #20

Everybody Likes Rad?

Episode #21

You Have to Care

Episode #22

Plaza Prom

Episode #23

Second First Date

Episode #24

One Last Score

Episode #25

T.K.O.

Episode #26

Stop Attacking the Plaza

Episode #27

We've Got Fleas

Episode #28

No More Pow Cards

Episode #29

A Hero's Fate

Episode #30

Let's Have a Stakeout

Episode #31

K.O.'s Video Channel

Episode #32

Rad Likes Robots

Episode #33

The Power Is Yours

Episode #34

Glory Days

Episode #35

Plazalympics

Episode #36

We Got Hacked

Episode #37

Parents' Day

Episode #38

Back in Red Action

Episode #39

Let's Take a Moment

Episode #40

Villains' Night Out

Episode #41

Villains' Night In

Episode #42

Let's Watch the Pilot

Episode #43

Mystery Science Fair 201X

Episode #44

RMS & Brandon's First Episode

Episode #45

Lad & Logic

Episode #46

OK Dendy! Let's Be K.O.!

Episode #47

Plaza Shorts

Episode #48

Let's Not Be Skeletons

Episode #49

Action News

Episode #50

The Perfect Meal

Episode #51

Hope This Flies

Episode #52

You're in Control