Season 1
2009 · 26 episodes · 11h 16m in all · 8.3/10
After years of peace since the defeat of Piccolo Daimaoh, Goku now lives peacefully with his wife Chi-Chi and their son Gohan. But everything changes when a mysterious warrior called Raditz arrives on Earth, revealing that he is Goku's brother and that they both belong to the warrior race of the Saiyans, a brutal people who conquer planets.

Episodes

1. Prologue to Battle! The Return of Goku!
5 Apr 2009 · 26 min · 8.0/10
Goku is a legendary warrior and the strongest fighter on the planet, but he's about to encounter a foe from outofthisworld. What brings this new menace to Earth? And what's up with his tail?

2. The Enemy Is Goku's Brother?! The Secret of the Mighty Saiyan Warriors!
12 Apr 2009 · 26 min · 7.9/10
When Raditz abducts Gohan and announces his plans to conquer Earth, Goku and Piccolo are forced into an uneasy alliance. The two rivals don't trust each other, but neither of them can defeat the Saiyan on their own!

3. A Life or Death Battle! Goku and Piccolo's Desperate Attack!
19 Apr 2009 · 26 min · 7.9/10
Despite the fury of their attacks, Goku and Piccolo are unable to land a death blow in their battle against Raditz. Gohan's unexpected outburst manages to weaken the powerful Saiyan, but it may be too little, too late.

4. Run in the Afterlife, Goku! The One Million Mile Snake Way!
26 Apr 2009 · 26 min · 7.7/10
Now that he's dead, Goku must fight to survive in the afterlife, especially during his treacherous trek down Snake Way. Back on Earth, Gohan endures his own punishment as a student in the house of Piccolo!

5. Wilderness Survival! A Moonlit Night Awakens Gohan!
3 May 2009 · 26 min · 7.5/10
Piccolo tries to toughen up Gohan with some wilderness survival training, but things get hairy when the young Saiyan sees his first full moon! Meanwhile, Yajirobe summons Earth's strongest fighters to Kami's Lookout.

6. The End of Snake Way! King Kai's Bizarre Test!
10 May 2009 · 26 min · 8.1/10
As the deadly Saiyan invaders approach Earth, Gohan makes slow, but steady, progress under the watchful eye of Piccolo, and Goku struggles with the "gravity" of his training under King Kai.

7. The Battle with Ten-Times Gravity! Goku's Race Against the Clock!
17 May 2009 · 26 min · 8.0/10
To prove himself worthy of King Kai's training, Goku must test his mettle against a fleetfooted monkey and a powerful cricket that's big on respect. Meanwhile, in the land of the living, Gohan takes a beating from his monstrous master!

8. Shenron Appears! The Saiyans Arrive Sooner than Expected!
24 May 2009 · 26 min · 8.0/10
Goku's training under King Kai is finally complete, and he's eager to return to Earth. Master Roshi uses the Dragon Balls to summon Shenron, but will Goku make it back in time to stop the Saiyans?

9. Yamcha's Struggle! The Terrible Saibamen!
31 May 2009 · 26 min · 8.2/10
The Saiyans have arrived, Goku isn't even on the planet, and the overmatched ZFighters represent Earth's last line of defense. When Vegeta and Nappa unleash the gruesome Saibamen, Yamcha picks a fight that could be his last!

10. Sit Tight, Chiaotzu! Tien's Screaming Tri-Beam!
7 Jun 2009 · 26 min · 8.0/10
Krillin's furious attack wipes out the Saibamen, but the ZFighters are powerless against the Saiyan warlords. One by one, Earth's defenders suffer devastating injuries or fall in battle. Goku's return is their only hope for survival.

11. Will Goku Make It in Time?! Three Hours Until the Battle Resumes!
14 Jun 2009 · 26 min · 8.2/10
Piccolo hatches a desperate plan to prolong the battle until Goku's arrival. When Vegeta senses an awesome source of power approaching, he orders Nappa to dispose of remaining ZFighters starting with Gohan!

12. Farewell, Piccolo! Goku's Furious Counterattack!
21 Jun 2009 · 26 min · 8.5/10
Goku arrives in time to save Gohan and Krillin, and the resurrected warrior is eager to put the hurt on Nappa. When it becomes clear that Goku is no ordinary fighter, Prince Vegeta steps in to finish the fight himself!

13. The Power of the Kaio-Ken! Goku vs. Vegeta!
28 Jun 2009 · 26 min · 8.8/10
The stage is set for a final showdown between Vegeta and Goku. The Saiyan Prince is stronger, faster, and far more ruthless. Goku's only hope for victory is a technique that may very well destroy him!

14. An All-Out Kamehame-Ha! Vegeta's Terrible Transformation!
5 Jul 2009 · 26 min · 8.7/10
Vegeta can’t handle the fury of Goku’s triple Kaio-Ken technique, so the Saiyan warlord unleashes his inner ape. Weakened by his furious onslaught, Goku’s only hope to defeat the beast is the mighty Spirit Bomb!

15. Goku on the Ropes! Pin Your Hopes on the Spirit Bomb!
12 Jul 2009 · 26 min · 8.2/10
As Goku lies exhausted and vulnerable on the field of battle, Gohan and Krillin take aim at Vegeta’s only weakness: his tail! If they can take the ape out of the fight, they might have a chance to escape with their lives.

16. Defeat the Invincible Vegeta! Work a Miracle, Gohan!
19 Jul 2009 · 26 min · 8.0/10
Krillin and Gohan team up to blast Vegeta with a Spirit Bomb, but the Saiyan prince refuses to die. Things look bad for the Z-Fighters until Yajirobe distracts the enemy long enough for Gohan to undergo a transformation of his own!

17. Dawn of a Fierce Battle! The Star of Hope Is Piccolo's Homeland!
2 Aug 2009 · 26 min · 8.0/10
Vegeta has been defeated, but there’s no time to celebrate. The Z-Fighters must find a way to resurrect the friends who died stopping the Saiyan invasion. Fortunately for the fallen, Krillin has a plan!

18. The Ship Resting in Yunzabit! Time to Blast Off for Planet Namek!
9 Aug 2009 · 26 min · 8.0/10
Preparations for the journey to Namek hit a snag when Bulma accidentally blows up the remaining Saiyan spaceship. Mr. Popo may know of another vessel, so he and Bulma travel to the Earth’s end for a closer look.

19. A Powerful New Foe! Frieza, Ruler of the Universe!
16 Aug 2009 · 26 min · 8.8/10
A bad case of space boredom makes Bulma a pain to share close quarters with, and Vegeta recovers from his injuries only to discover that Frieza has a head start on tracking down the magic Dragon Balls!

20. The Rebellion Against Frieza! Vegeta's Burning Ambition!
23 Aug 2009 · 26 min · 8.8/10
Gohan and Krillin beat up on Frieza’s henchmen, but their spaceship is destroyed in the process. Vegeta is headed for a showdown with Cui, and the shrewd Saiyan is keeping his true power level under wraps!

21. Protect the Dragon Balls! The Namekians' All-Out Attack!
30 Aug 2009 · 26 min · 8.7/10
Goku blasts off in a brand new spaceship specially equipped with a device designed to help increase his strength! On Namek, Krillin and Gohan watch in horror as Frieza’s men slaughter innocent Namekians.

22. Dodoria's Terrifying Chase! A Truth Revealed to Vegeta!
6 Sept 2009 · 26 min · 8.7/10
Gohan and Krillin risk their lives to rescue a young Namekian, and Vegeta goes on the rampage after learning the truth about the destruction of his home planet!

23. Vegeta's Covert Maneuvers! A Tragic Assault on the Namekians!
13 Sept 2009 · 26 min · 8.3/10
After easily defeating Dodoria, Vegeta begins his violent search for the two remaining Dragon Balls. Meanwhile, Krillin and his new friend Dende set out to warn the eldest Namekian of the horror headed his way!

24. Friends Reborn! Zarbon's Hideous Transformation!
20 Sept 2009 · 26 min · 8.5/10
King Kai telepathically "phones" Goku with a warning to stay as far away from Frieza as possible! Back on Namek, Vegeta is shocked to discover how much a simple transformation can increase Zarbon’s power.

25. Power Up, Krillin! Frieza's Mounting Apprehension!
27 Sept 2009 · 26 min · 8.7/10
The eldest Namekian unlocks the full force of Krillin's dormant power, so the bald brawler can better protect his Dragon Ball. Elsewhere, a Saiyan-related premonition prompts Frieza to call for reinforcements.

26. The Scheme Is Shattered! Vegeta Strikes Back at Zarbon!
4 Oct 2009 · 26 min · 8.7/10
Vegeta lays it on the line in a daring attempt to steal the Dragon Balls right out from under Frieza’s nose. Krillin’s riding high on a Namekian power surge, but he’s about to wander into a dogfight he can’t survive!
Dragon Ball Z Kai Season 1: quick answers
How many episodes are in Dragon Ball Z Kai Season 1?
Season 1 of Dragon Ball Z Kai has 26 episodes, about 11 hours in total.
When did Dragon Ball Z Kai Season 1 come out?
Season 1 premiered on 5 Apr 2009.
What is the best episode of Dragon Ball Z Kai Season 1?
By viewer score, episode 13, “The Power of the Kaio-Ken! Goku vs. Vegeta!”, at 8.8/10.