On February 22, 2011, a devastating earthquake shook Christchurch, killing 185 people. One hundred and fifteen of those people were in the CTV building. The building should never have been built.
6: Tragedy, travesty
Police announce the results of their investigation. Will anyone be held accountable over 115 deaths?
The CTV story descends into controversy and farce: a fake engineer and New Zealand's biggest homicide investigation.
4: Boom and bust
The CTV building was born in the 1980s construction boom. It had profound design flaws that were flagged at the time. How did it even get built?
3: Need help, need help
Senior Constable Stuart Martindale gets a tap on the shoulder and is handed a phone number. A trapped survivor is calling from underneath the rubble.
2: Call me Louis
Rescuers tunnel into the rubble and find what was left of a school cafeteria with 22 students trapped - dead and alive.
1: The mountain and the cave
Topi Emery and Marion Hilbers were among the 149 people in the CTV building when it collapsed. Their families kept vigil at the site for hours, hoping for a miracle.