It's the countdown to New Year's Eve as the famous fireworks almost didn't happen off the Sydney Opera House sails. Backstage, Opera Australia battles while scrambling for singers and crew as COVID-19 bites.

It's the start of a busy year at the Sydney Opera House as the Australian ballet returns. While a whirlwind of romance hits the house with 28 Valentine's Day weddings, disaster strikes and Vivid LIVE faces a washout.

It's the final countdown to the re-opening of the Concert Hall after a $150 million rebuild. After two and a half years, this is when CEO Louise Herron and the world will know if it has worked.