Robot Trains - Season 1 - Eps 28: All for One and One for All
Everyone safely makes it to Victor's Base. There, Selly connects Victor's engine with Kay's while repairing Victor. Meanwhile, Duck is skating on a frozen lake when suddenly, the ice on the lake melts and all the water evaporates! Alf and Duke discover what has caused the situation and head out to find the source.
About Robot Trains

Title: Robot Trains
First Air Date: 2015-02-26
Last Air Date: 2019-05-19
Status: Ended
Rating: 5.7/10 (from 3 votes)
Language: KO
Seasons: 2
Total Episodes: 84
Network: Unknown
Genres: Animation, Kids, Action & Adventure, Comedy, Sci-Fi & Fantasy, Family
Production Companies: CJ ENM, Union Investment Partners, Woori Investment Co.
Synopsis
Set in the "Train World" where all citizens are trains. However, among the residents there are special trains that can transform into robots, the Robot Trains! Featuring our 5 train heroes, with special powers: Kay, Alf, Duck, Selly and Victor - and their exciting adventures. Can the Robot Trains save the village from the evil dark forces that be?