The World's Strongest Engine (Swedish DVD)

The World's Strongest Engine is a Swedish, Norwegian, Danish, Slovenian and Italian DVD featuring thirteen episodes from the sixth series. It was originally released in Sweden in 2006 with only eleven sixth series episodes. It was released under the title Scaredy Engines for Norwegian audiences. It was released in Denmark under the title The World's Strongest Engine and Other Stories. It was released under the title Salty's Secret for Slovenian audiences in 2007. It was released under the title Percy and the Haunted Mine for Italian audiences in 2012.

Sweden

 * 1) Harvey to the Rescue
 * 2) A Bad Day for Harold the Helicopter
 * 3) Elizabeth the Vintage Lorry
 * 4) The Fogman
 * 5) Jack Jumps In
 * 6) A Friend in Need
 * 7) It's Only Snow
 * 8) Twin Trouble
 * 9) The World's Strongest Engine
 * 10) Scaredy Engines
 * 11) Percy and the Haunted Mine

Norway/Denmark

 * 1) No Sleep for Cranky
 * 2) Salty's Secret
 * 3) Harvey to the Rescue
 * 4) A Bad Day for Harold the Helicopter
 * 5) Elizabeth the Vintage Lorry
 * 6) The Fogman
 * 7) Jack Steps In
 * 8) A Friend in Need
 * 9) It's Only Snow
 * 10) Twin Trouble
 * 11) The World's Strongest Engine
 * 12) Scaredy Engines
 * 13) Percy and the Haunted Mine

Slovenia

 * 1) Salty's Secret
 * 2) No Sleep for Cranky
 * 3) Harvey to the Rescue
 * 4) A Bad Day for Harold the Helicopter
 * 5) Elizabeth the Vintage Lorry
 * 6) The Fogman
 * 7) Jack Jumps In
 * 8) A Friend in Need
 * 9) It's Only Snow
 * 10) Twin Trouble
 * 11) The World's Strongest Engine
 * 12) Scaredy Engines
 * 13) Percy and the Haunted Mine

Italy

 * 1) Salty's Secret
 * 2) Harvey to the Rescue
 * 3) No Sleep for Cranky
 * 4) A Bad Day for Harold the Helicopter
 * 5) Elizabeth the Vintage Lorry
 * 6) The Fogman
 * 7) Jack Jumps In
 * 8) A Friend in Need
 * 9) It's Only Snow
 * 10) Twin Trouble
 * 11) The World's Strongest Engine
 * 12) Scaredy Engines
 * 13) Percy and the Haunted Mine

Trivia

 * The Swedish and Danish DVD covers use a image from Gordon Takes a Tumble.
 * The Slovenian DVD cover is similar to The Fogman and Other Stories UK release.
 * On the Danish and Norwegian DVDs, No Sleep for Cranky comes before Salty's Secret and Harvey to the Rescue, so the audience would not know who Salty and Harvey are.