OK K.O.! Let's Be Heroes
Season 1, Episode 43: Mystery Science Fair 201X
Select Source
K.O. helps Dendy with her science fair project.
All Episodes - Season 1
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
KO'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