After getting too emotionally involved in a ninja movie, Kagura accidentally breaks Hikari's kendama toy, and thinks that he won't forgive her. However, the Ressha stops at a new Dark Station where Hanko Shadow has made everyone lose their motivation, and Right, Tokatti, and Mio fall under his spell.

The signal from the lost Diesel Ressha is found, but because it is so weak there might be a chance it cannot work again. Right is sent out to find it, as his strong Imagination can restore it. They learned that the previous enemy they encountered placed a bomb on Tokatti that is strong enough to destroy the Resshas, when the Ressha's brakes are discovered to be broken, everyone fears that the Shadow Line has planted a bomb on them.

A series of attacks from Kuliner Robos leaves the main Ressha in dire need of repairs, once again leaving the Support Ressha and Diesel-Oh all that the ToQgers can use. The Conductor warns them that they must find other Support Ressha in order to bolster the powers of Cho ToQ-Oh. While Right and Mio are out searching, Loupe Shadow appears, and throws Mio into a powerful rage.

While stopping at the next station, Right, Tokatti, Mio, and Kagura are all arrested for a crime they did not commit, because the cop who arrested them is incompetent. Hikari must now try to discover the true culprit and free his friends.

While Tokatti is trying to befriend Akira, the Ressha gets trapped in a mine collapse orchestrated by a Kurainer Robo, forcing Tokatti and Akira to work together to find ToQ 6gou's personal Ressha.

Jack-in-the-Box Shadow's ability to send people flying away from him if they laugh affects all the ToQgers except Akira, leading the others to help Akira find his sense of humor or else he may be killed.

Right tries to use the Hyper Ressha to liberate the next Shadow Town, but his body cannot handle the strain. Elsewhere, new members of the Shadow Line appear.

Madame Noir uses her powers to turn Right against the other ToQgers, with Tokatti leading the group to get their friend back.

With the Hyper Ressha Terminal occupied by the Shadow Line forces, the President decides to authorize the ToQgers to use all thirteen of their Ressha together to get it back, but first, they must get the Drill Ressha back from General Schwarz.

Hikari finds their old homeroom teacher is still alive, as she had left town to go to university, and he leads the others in protecting her from Fountain Pen Shadow's failure attack so she could tell them the location of Subarugahama.

Right wants to make an assault on Castle Terminal to free Subarugahama, but Akira and Mio realize that he is being too headstrong. Wagon reveals that she can deliver a letter for them, but it must contain their true feelings of things and Tokatti is not ready to commit to that.

When Dollhouse Shadow attacks the ToQgers, Hikari and Kagura are trapped inside its dollhouse which will burn and kill them if they cannot find a way out or if the others cannot stop it.