Travel to the sky train station is a mission in Into the Nexus, taking place in the Weeblesnog pipeline of Weeblesnog City on planet Silox. Ratchet and Clank had to reach the sky train station, the location of a power surge, to locate Vendra and Neftin Prog.
Walkthrough[]
Continue using the GrummelNet Jetpack to traverse the pipeline system. Follow the power cable while flying through the inactive fans. A few thug shooters and a thug brawler at a turret guard the area partway through. Use the turret to destroy a gate blocking the path. If the fuel runs out, wait for the Jetpack to partially regenerate. Continue flying until the end, then defeat the two thug grenadiers guarding another pump. Reactivate it with the battery bot, which is hidden on a lower platform.
Activating the pump with the bolt crank causes the water to rise, so quickly retrace your steps, flying through the slowest fans when possible. At the start of the pipeline, refuel quickly before continuing the escape. Ignore the jetpack shooters on the way and quickly turn the bolt crank at the end of the path. If you have not yet; purchase the Plasma Striker at the vendor here. Exit the underground through a pipe near the ceiling.
The sky train station will be in sight. The path is blocked by a number of thug shooters, three grenadiers, and a gunship guarding a bolt crank. The Plasma Striker is useful here due to the open area, although attacking the gunship while scoped is difficult. The grenadiers only attack when Ratchet is on solid ground. Defeat all enemies, then head into the station.
Clank will detect a nether rift. Locate it and enter. Once inside, alter gravity to make the cube fall into its slot without being blocked by the movable platforms. For the first puzzle, use the horizontal platform to block the vertical one. Fall through the rest of the level, watching for numerous moving hazards, to reach a second puzzle.
This time, use the top horizontal platform to block the vertical one and let the cube fall past it. Then, use the vertical platform to block the lower horizontal one to allow the cube to reach its slot. This grants access to the nether, which can then be led back to the rift past all the hazards. This breaks the wall, granting access to a bolt crank that removes the broken train and reveals a new platform. Use 
on the platform to ascend to the roof. A cutscene plays, leading directly into the next mission, "Defeat Neftin Prog".