S01E01 Earth Engine Open Fire
One night right before summer vacation, Daichi Manatsu, a second-year in high school, sees a weird round rainbow floating in the sky above Seed Island (Shuushi/Tane Island) and ventures there alone. He has seen this...
Captain Earth
S01E11: Through the Window of Setsuna
Akari and Hana befriend a young girl called Setsuna, unaware that she is one of the missing Design Children. Amara and Moco attempt to contact Setsuna, but stumble into a confrontation with Daichi and Teppei instead, while Setsuna learns the shocking truth behind the experiments made on her by her caretaker.
Overview
High-school student Daichi Manatsu works for the Globe organization to pilot a giant robot called the Earth Engine Impacter to protect the Earth from the invading alien force known as the "Kill-T-Gang", from the planet Uranus.
Episodes
S01E02 The Name of the Gun Is Livlaster
Daichi was successful to unite the Earth Engine Impactor base formation. With a mysterious girl claiming to be "magical girl", he repel the Kil-T-Gang Morukin. Daichi's father was a Globe member once, he came back...
S01E03 The Rainbow of Albion
Yomatsuri Akari who is the only daughter of the Globe commander - Nishikubo - applied to the new team, they're enjoying the full summer of Tanegashima. In front of such four, a new enemy -Amarok-...
S01E04 Assault of the Planetary Gear
Amarok and Moco from Planetary Gear commencing an assault on Globe base.
S01E05 Starry Sky's Picture Book
There are two factions divided over how to deal with the Kiltgang: the interception faction that wants to fight them and the ark faction that wants to send out a new humanity to escape. Commander...
S01E06 Kivotos Plan
Tippei's "father" has gone missing after the incident on the Tenkaidou. The "ark" faction seeks to allow a few chosen people to escape from Earth to avoid the Kiltgang. They try to steal Hana, because...
S01E07 The Midsummer's Knights
Just like Hana predicted, the Kiltgang appear inside defensive zone 1. Daichi is pinned between them and almost defeated, but Teppei and his Kiltgang Albion save him. Teppei destroys his own ego block, and with...
S01E08 Sign From the Dark
After failing to attack Earth by themselves, Amara and Moco decide to awaken the other members of their race that are scattered to assist them. The first member they contact is Zin, the avatar of...
S01E09 Magical Girl Akari
Ai, the avatar of the robot Aiatar is the second Design Child contacted by Amara and Moco, and to increase their chances of success, they kidnap Akari and force her to infiltrate mankind's orbital defense...
S01E10 On the Windy Planet
Amara and Moco awaken Lin, the third of their companions and the Avatar of the Kill-T-Gang Liebam. Daichi confronts Lin and defeats her, but fails to prevent her from summoning Liebam and it's up to...
S01E11 Through the Window of Setsuna
Akari and Hana befriend a young girl called Setsuna, unaware that she is one of the missing Design Children. Amara and Moco attempt to contact Setsuna, but stumble into a confrontation with Daichi and Teppei...
S01E12 Let's Fight, Boys
The Midsummer's Knights infiltrate an underground ring in search for Baku, the last of the missing Design Children, who is being forced to fight illegal matches for the Yakuza. Amara breaks into the ring and...
S01E13 Baku's Time
Baku refuses to join the other Planetary Gears out of his attachment to Kumiko, the daughter of the local Yakuza. But this changes when the truth about Kumiko comes to surface and Baku decides to...
S01E14 A Maiden's Tear That Sparkled Through the Night
With no missions to perform in the next days, Daichi and his friends are given a few days of R&R. In the occasion, Hana reveals that she loves Daichi, but fears what he may think...
S01E15 True Self
Running away from her friends, Hana meets Setsuna again, and the two end up pursued by Amara and Moco, while Puck, the AI built by Macbeth Enterprises, lays a trap to the CEO and snatches...
S01E16 Her Flare
Now finally assembled, the Planetary Gears get the full support of Macbeth Enterprises in their endeavors, unaware of Puck's true intentions. Meanwhile, with Daichi and Teppei still recovering from the last battle, Hana pilots her...
S01E17 Knights of Midsummer
An inspector from Salty Dog arrives at the Tanegashima Base and questions the merits of the Midsummer's Knights so far. Meanwhile, Moco and Zin launch another attack on Earth, and with Hana's Engine still under...
S01E18 Onslaught Through the Wilderness
Daichi, Hana and Teppei board a shuttle to return to Earth, but during reentry, an unexpected change of course leaves them stranded in the middle of Australia. Knowing that they were victims of sabotage, the...
S01E19 Your Smile Means Everything
After hijacking a transport to return home, Daichi and the others are pursued by an unmanned Impacter from Salty Dog, who is determined to capture Hana at all costs for the sake of their plans,...
S01E20 Satellitejack
To defeat the Planetary Gears once and for all, the Midsummer's Knights prepare to depart for Uranus in order to destroy the enemy spaceship and render them powerless as part of their master plan, the...
S01E21 The Meaning of a Captain
Hana is kidnapped by Salty Dog, but Daichi and the others are too busy dealing with a shower of debris that threaten the space station. When Teppei's impacter is damaged and unable to move, Daichi...
S01E22 The Operation Summer
After averting the previous crisis, Daichi and the others are ready to begin the Operation Summer, but Salty Dog activates their most powerful weapon in order to stop them. Meanwhile, the Planetary Gears succeed to...
S01E23 A Midsummer Night's Dream
On their way to Uranus, Daichi has a strange dream where he meets the Planetary Gears who tempt him to keep living with him in a dream world, but manages to escape thanks to the...
S01E24 Auberon
At last the Midsummer's Knights reach the Planetary Gears mothership, Auberon. The enemies attempt to halt their advance, but soon after, Puck appears and takes control of Auberon's systems, betraying the Planetary Gears and declaring...
S01E25 Captain Earth
Puck takes control of Blume while possessing Hana's body and leaves to consume all life on Earth. With the Planetary Gears defeated, Daichi is the only one left on Puck's way, fighting with all his...
Cast
Miyu Irino
Daichi Manatsu
Hiroshi Kamiya
Teppei Arashi
Ai Kayano
Hana Mutou
Rikiya Koyama
Tsutomu Nishikubo
Kouichi Sakaguchi
Peter Westvillage
Shun Takagi
Sander
Rina Hidaka
Akari Yomatsuri
