Episode XIII: Old Reliable was uploaded on July 8, 2014 and is the third episode of the second season.
D199 is given a second chance on Sodor, and has changed his views on steam engines. But the other engines don't trust him.
- Sir Topham Hatt
- Donald and Douglas (Douglas does not speak)
- Thomas (does not speak)
- Bertie (appears in hallucination)
- Percy (cameo)
- Duck (cameo)
- Bulgy (cameo)
- Old Slow Coach (cameo)
- Stanley (cameo)
- Neil (cameo)
- Smudger (appears in hallucination, cameo)
- Diesel 10 (appears in hallucination, cameo)
- Peter Sam (mentioned)
- The episode is the first of a two part story. The story will continue where this left off in Episode XIV.
- The episode was originally planned for release in June, but vacation and voice actor problems delayed the production.
- When D199 arrives on Sodor, the song "Without Me" by Eminem is heard.
- Events from the RWS book "Enterprising Engines" are mentioned.
- D199's theme, heard when he tells Bear how he's changed, was made in Studio One. It is a remix of Diesel's theme.
- This is the last episode until their Season 3 appearances where Donald and Douglas are voiced by Thomas1Edward2Henry3. Carson0802200 later took over the roles from the next episode.