As of July 2026, The Thundermans: Undercover Season 1 aired in 2025 with 26 episodes — streaming now on Paramount+ Amazon Channel. Full episode guide and where to watch below.
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The Thundermans: Undercover Season 1

2025 26 Episodes Action & Adventure · Kids ⭐ 8/10

If you want science fiction that respects its own premise, The Thundermans: Undercover Season 1 is available on and right now. Across 1 season, the show has had time to find its rhythm and keep it. 32 people have weighed in on TMDB, and the verdict leans heavily positive. Kira Kosarin leads a cast that never lets the concept overwhelm the characters. Put it on tonight and see for yourself.

The Thundermans: Undercover Season 1 arrived without much fanfare and built its audience the hard way — through word of mouth. The Thundermans: Undercover Season 1 treats its concept seriously enough to follow it all the way through. Season 1 of The Thundermans: Undercover includes 26 episodes. It aired from January 2025 to December 2025. This season stars Kira Kosarin, Jack Griffo and Maya Le Clark. Kira Kosarin and Jack Griffo lead a cast that brings real weight to the material. It was aired in 2025. The rules of The Thundermans: Undercover Season 1's world are consistent enough that the big swings never feel like cheating. It rarely drops the ball, and when it does, it recovers fast.

Viewers burned by ambitious sci-fi that could not sustain its premise should give The Thundermans: Undercover Season 1 a chance. It stands on its own even without an obvious comparison point. A contained run means every episode is doing real work. Kira Kosarin anchors it with a performance that makes the more abstract moments feel personal. If you have been burned by ambitious sci-fi before, this is the exception.

📡 Where to Watch The Thundermans: Undercover Season 1

🇦🇺 Australia
🇺🇸 United States
🇬🇧 United Kingdom
🇨🇦 Canada
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🎬 The Thundermans: Undercover Season 1 — Episode Guide

E1
Thundercover
2025-01-22
Max and Phoebe bring Chloe on an undercover mission in a new town, so she can experience life as a normal kid.
E2
Faulty Powers
2025-01-22
A training accident makes Chloe's powers faulty. Max tries to cure her and gets a misleading positive result, so she goes to a party. But his treatment actually creates brand new powers Chloe can't control, so the twins have to get her out!
E3
Bummer School
2025-01-29
Chloe, Jinx, and Booch are designing a school mascot, but Max and Phoebe's feud over their jobs ruins the project. Chloe reads them the riot act, and the twins realize their twin-fighting affects Chloe now that they're guardians.
E4
The Parent Zap
2025-02-05
After Phoebe and Max let Chloe's friends watch a horror movie and eat candy, Jinx and Booch's parents want to meet Chloe's. With Hank and Barb away, Max and Phoebe transform into them to help Chloe. It goes well until the real Hank and Barb show up.
E5
Save the Date
2025-02-12
Max bets Phoebe she can't turn off being a superhero and go on a normal date. Chloe helps Phoebe do well on the date, but Max tries to sabotage by crying wolf. Suddenly, a real supervillain emerges and puts Max and Chloe in serious danger.
E6
Cherry Bad Things
2025-02-26
Cherry visits and Max discovers Phoebe never took her sparkle power away. Phoebe promises to do so and has a girls' night with Cherry while Max hosts Jinx. Colosso gets jealous, and Cherry's powers malfunction, nearly blowing Phoebe's cover.
E7
Not So Fast and Furious
2025-03-05
A new super-fast villain is wreaking havoc in Secret Shores, and Billy is the only hope at tracking her down. After Billy's speed accidentally triggers an avalanche, however, he decides to hang up his cape and retire from being a superhero.
E8
For Your Spies Only
2025-03-12
Max and Phoebe attend Parent-Teacher Night, leaving Chloe to have friends over without adult supervision. Jinx finds the Air Lair and believes spies are targeting the school, and his meddling puts Max and Phoebe's school jobs at risk.
E9
No Friend in Sight
2025-03-19
Chloe feels smothered by Max and Phoebe, and encourages them to make new friends. However, the twins unwittingly make the same friend, and begin a battle for the ages over her. Chloe's new alone time is interrupted by living room-crashing pelican.
E10
All About Steve
2025-03-26
Billy arrives, hopeful that his new sidekick Steve can join the T-Force. Phoebe and Max consider it, but soon discover that his superpower is making marshmallows. After they reject Steve's bid to join the team, he turns evil and vows revenge.
E11
Tide and Prejudice
2025-04-02
The former protector of Secret Shores arrives at the Thundermans' beach house and reclaims it as his home. Phoebe, Max, and Chloe try to reason with him, but when a protest at the school goes wrong, the former hero proves more harmful than helpful.
E12
Prank You, Next
2025-04-09
After Max is targeted by a mystery prankster at school, he seeks help from Principal Bradford. But Max fails to stop the pranks and quits the mission in embarrassment, prompting Chloe to confess that she was the prankster all along.
E13
From Dust Till Dawn
2025-04-16
Chloe doesn't want to learn leadership skills. But when a villain attacks her field trip trying to steal a space geode, Max and Phoebe have to put Chloe in charge while they try to take down the villain and defuse his dangerous astronomical weapon.
E14
Summer of Secrets
2025-07-17
Chloe has been missing school by going on missions with her siblings. She now has to go to summer school to catch up on everything she has missed. Max, acting as the substitute for summer school, has a new student who agrees to tutor her.
E15
I Know What You Did This Summer
2025-07-17
B.C. invites Chloe to a launch party, and at the same time Jinx and Booch invite Chloe to protest outside the party. Not wanting to hurt anyone's feelings Chloe tries to do both. Phoebe is keeping her working with Captain Perfect a secret from Max.
E16
The Summer I Turned Giddy
2025-07-24
Upset that Phoebe secretly partnered with Captain Perfect, Max decides to have a new superhero partner, his best friend Gideon. But things go wrong when Max tries to make Gideon a better superhero.
E17
A Midsummer Knight's Scheme
2025-07-24
Captain Perfect's younger sister, Penny, is headed down the path of becoming a supervillain. Eager to impress Captain Perfect, Max takes it upon himself to guide her toward a better path.
E18
Cruel Summer
2025-07-31
Max flees from Phoebe and Captain Perfect to prove his innocence when he is wrongly accused of committing a crime.
E19
Endless Summer
2025-07-31
Max pretends to turn evil to infiltrate Mastermind's henchmen and steal the Chip-Chucker, a device that previously turned him evil.
E20
The Max of Life
2025-09-10
Max misses being famous and having fans, so he decides to break Booch's sandwich-stacking record to be famous again. Chloe rallies behind Bootch so that she can take back her record.

🎭 Cast of The Thundermans: Undercover Season 1

Kira Kosarin
Kira Kosarin
Phoebe Thunderman
Jack Griffo
Jack Griffo
Max Thunderman
Maya Le Clark
Maya Le Clark
Chloe Thunderman
NB
Nathan Broxton
Jinx
KC
Kinley Cunningham
Kombucha
Daran Norris
Daran Norris
Thunderford
Dana Snyder
Dana Snyder
Dr. Colosso

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