This documentary follows the fight to save Christchurch’s “other” earthquake damaged cathedral, the Roman Catholic basilica. A team led by a heritage consultant and a structural engineer struggles to keep pace with fresh damage inflicted on the basilica by ongoing quakes. Drones and a Defence Force robot aid investigations into the interior of the now dangerous building. There are hard questions about the venture’s costs. But, as parishioners tell their stories, there’s also reminders that the basilica isn’t just an architectural treasure — it has been the heart of a community.

This collection looks at some of New Zealand's most significant national tragedies. Spanning 150+ years, it tells stories of drama, caution, hope and recovery — from the 1863 wreck of the Orpheus at Manukau Heads, to Tarawera, the Wahine, Erebus, Pike River and Christchurch. In the backgrounder, Jock Phillips writes about the collection, and the "common sequence" to disaster.

The timeline for building Barcelona cathedral La Sagrada Família spans decades. Architect Antoni Gaudí died in 1926, when it was less than a quarter complete. In 1992 arts show Sunday talked to Kiwi Mark Burry, a longtime principal architect on the famed basilica. Burry talks about being won over by Gaudí at university — when Gaudí was out of vogue — working on the project remotely, and trying to understand Gaudí's intentions for a design that has evolved with time. Meanwhile narrator Ray Henwood waxes lyrical over images of the cathedral and other Gaudí creations.