Every season of W5 ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of W5!

Avery rides atop Mexico's "death train" through narco territory, documenting the harrowing journey migrants take in search of a better life.

NARCO JUNGLE: THE DEATH TRAIN

How far would you go to save your son? Avery Haines investigates why counter terrorism experts are warning of a ticking time bomb.

OUR SON THE TERROR SUSPECT

Accused cult leaders deny allegations of brainwashing and coercing followers to change genders.

Avery Haines leads the new W5 Investigative Unit, showcasing her daring and immersive reporting.