Justice League Action
Season 1, Episode 39: The Brain Buster
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A mysterious creature abducts Batman, Mr. Terrific, Luthor and two of the brainiest villains in the universe to put them to the test to discover who is the smartest among them.
All Episodes - Season 1
Episode 1
Classic Rock (1)
Episode 2
Power Outage (2)
Episode 3
Night of the Bat (3)
Episode 4
Abate and Switch (4)
Episode 5
Follow That Space Cab!
Episode 6
Nuclear Family Values
Episode 7
Zombie King
Episode 8
Galaxy Jest
Episode 9
Time Share
Episode 10
Under a Red Sun
Episode 11
Play Date
Episode 12
Repulse!
Episode 13
Trick or Threat
Episode 14
Speed Demon
Episode 15
Hat Trick
Episode 16
Luthor in Paradise
Episode 17
Plastic Man Saves the World
Episode 18
Field Trip
Episode 19
Rage of the Red Lanterns
Episode 20
Freezer Burn
Episode 21
Inside Job
Episode 22
The Trouble with Truth
Episode 23
Double Cross
Episode 24
Battle for the Bottled City
Episode 25
Garden of Evil
Episode 26
All Aboard the Space Train
Episode 27
Time Out
Episode 28
The Fatal Fare
Episode 29
Mxy's Mix-Up
Episode 30
Supernatural Adventures in Babysitting
Episode 31
Booster's Gold
Episode 32
Boo-ray for Bizarro
Episode 33
Best Day Ever
Episode 34
The Cube Root
Episode 35
Superman's Pal, Sid Sharp
Episode 36
Superman Red vs Superman Blue
Episode 37
The Ringer
Episode 38
Forget Me Not
Episode 39
The Brain Buster
Episode 40
E. Nigma, Consulting Detective
Episode 41
Harley Goes Ape!
Episode 42
Phased and Confused
Episode 43
It'll Take a Miracle
Episode 44
System Error
Episode 45
Race Against Crime
Episode 46
Party Animal
Episode 47
Watchtower Tours
Episode 48
Barehanded
Episode 49
Captain Bamboozle
Episode 50
Keeping Up with the Kryptonians
Episode 51
Unleashed
Episode 52
She Wore Red Velvet