What is friendship? Why do two grown men behave like egomaniac children or flustered prima donnas? And when they meet unexpectedly after ten years, how will things be?

5 best friends put their friendships to the test in 3 time-testing challenges.

5 best friends put their friendships to the test in 3 time-testing challenges.

It's a known fact that Taylor Swift and Karlie Kloss are BFFs, but who is the BEST best friend? We put the two of them through a series of tests, and the outcome will surprise you.

It's a known fact that Taylor Swift and Karlie Kloss are BFFs, but who is the BEST best friend? We put the two of them through a series of tests, and the outcome will surprise you.

The best from 1984 to today. To celebrate the success of Thomas & Friends we have put together the very best 20 episodes, from the classic live action to the all new animation. Watch Thomas and his friends in their most thrilling adventures featuring legendary storytellers Ringo Starr and Michael Angelis. It's Full Steam Ahead to the Best of Thomas!

Ferry and Robert have been best friends since the beginning of their life's. Robert slowly changes into a zombie after he gets himself into trouble. The big question is: is their friendship strong enough to last?

Beth Ferrier is happy in her life - fulfilled as a wife and mother, living in a beautiful home in a safe and tranquil neighborhood. Claudia Hartnell lives across the street and seems to be the perfect best friend - kind, compassionate, and a good listener. Nobody would ever guess that behind Claudia's charming facade lies an insatiable desire to live an idealized life. Nobody would suspect that her relentless childhood obsession is about to turn to murderous rage. Claudia wants everything that Beth holds dear and will use any means necessary to take it all away from her best friend.

The story is about three children who ran away from home in Phuket to Bangkok.

Known as the Junior Member of the railway with #6 on his side and a spunky personality, Percy has been a faithful friend of Thomas from the beginning. Even loyal Thomas & Friends' fans like you have chosen Percy as Thomas' favorite friend. Celebrate all the special characteristics and qualities Percy brings to the Island of Sodor in this commemorative Collector's Edition video. In a poll on www.thomasthetankengine.com, we asked children from around the world to select their favorite classic Percy stories. Remember when Percy pretended to be a ghost and scared Thomas... or when, after an argument with James and Percy ended up in a very "sticky" situation!!!? Join Thomas, James, Sir Topham Hatt, and the rest of your Sodor friends as we honor everyone's favorite little engine who does really big things, Percy.