It’s 10.56am. A family home in Kendall on the Mid North Coast of New South Wales. Three-year-old William Tyrrell is reported missing. Last seen wearing his favourite Spider-Man suit. Ten years after his disappearance on 12 September 2014, there is still no sign of William. The police believe his foster mother knows something. She denies it. Only one of them can be telling the truth.

INTRODUCING WITNESS: WILLIAM TYRRELL

The definitive story of Australia’s most controversial missing person’s case. Launches 8 October 2024.

EPISODE ONE: MISTAKEN

What if everything you thought you knew about the disappearance of William Tyrrell was … wrong?

EPISODE TWO: SEARCHING FOR KARLIE

William’s birth family, and the decision to take him away.

EPISODE THREE: THE FOSTER PARENTS

William’s foster family, and the moment he goes missing.

EPISODE FOUR: THE POLICE THEORY

Does the police theory of what happened to William make sense?

BONUS EPISODE: THE INQUEST

What to expect at today’s inquest into William’s disappearance.

EPISODE FIVE: THE EVIDENCE

An inquest reveals what police have - and haven’t - found about William’s disappearance.

EPISODE SIX: HOW DID WE GET HERE?

We go back to the beginning of the police investigation.

All news footage used in this episode courtesy of 7NEWS.

EPISODE SEVEN: MALICIOUS PROSECUTION

The police zero in on a person of interest.

EPISODE EIGHT: PRESSURE

The pressure builds on both police and those they’re pursuing, until somebody cracks.

EPISODE NINE: SOMETHING WICKED

A new name emerges in the William Tyrrell investigation.

EPISODE TEN: THE SUSPECT

News leaks that police believe they’ve cracked the case.

EPISODE ELEVEN: WHAT NOW?

The investigation comes to a stop, and the police commissioner speaks out.

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