Digimon Frontier

Digimon Frontier is an anime series that aired from 2002 to 2003 as the fourth series in the Digimon franchise.

The story follows five children who go to a subway station and take a train to the Digital World after being prompted to do so by unusual phone messages. There, they meet Bokomon and Neemon, who act as their guides and inform them that the world is under threat of being destroyed by the evil Cherubimon. However, hope is not lost as the children discover that they have inherited the power of the ten legendary warriors who saved the Digital World in the distant past, allowing them to transform themselves into Digimon. With their new powers, they fight Cherubimon and his forces to restore the fractured Digital World to its former glory.

Episode 1
Takuya Spirit Evolves into Agunimon.

Episode 2
Tommy's and Koji's shirts fly up, and Koji Spirit Evolves into Lobomon.

Episode 3
Tommy Spirit Evolves into Kumamon.

Episode 5
Junpei Spirit Evolves into Beetlemon.

Episode 7
Koji's and Takuya's shirts fly up.

Episode 10
Koji Beast Spirit Evolves into KendoGarurumon.

Episode 12
Takuya Beast Spirit Evolves into BurningGreymon.

Episode 14
Junpei Beast Spirit Evolves into MetalKabuterimon.

Episode 15
The boys have fun at the beach.

Episode 17
Tommy Beast Spirit Evolves into Korikakumon.

Episode 21
Takuya appears naked.

Episode 22
A flashback shows Takuya's shirt having flown up during his sleep.

Episode 23
Tommy is tickled.

Episode 27
Koji appears naked.

Episode 28
Takuya appears naked.

Episode 30
Koji and Koichi appear naked.

Episode 33
Koichi Spirit Evolves into Loweemon.

Episode 35
Takuya and Koji become EmperorGreymon and MagnaGarurumon respectively through Unified Spirit Evolution.

Episode 48
Koichi appears naked, and Takuya and Koji become Susanoomon.

Episode 49
The group appears naked.

Episode 50
The group Ancient Spirit Evolve into Susanoomon, and Koichi awakens.