Watch The Block Specials in Australia

It's judge versus judge and partner versus partner when the stars of The Block Sky High embark on a heartwarming Domestic Blitz rescue mission. After spending 11 weeks transforming their incredible luxury apartments, the Blockheads will compete in teams to makeover the family home of two sisters, Jeannette and Sarah-Maree, both diagnosed with cervical cancer. The Block couples will be split into two teams for the job: Team Shaynna with Alisa, Bec, Madi, Johnno and Matt; and Team Darren with Lysandra, George, Trixie, Kim and Jarrod. They have three days to revamp this rundown, undersized, three-bedroom family home. Expect walls to be knocked down and the biggest backyard makeover in Domestic Blitz history. "It's great to have the Blockheads give back to such a deserving family, not to mention Shaynna and Darren who roll their sleeves up to help create the most stunning Blitz transformation ever," said Programming Executive, Simon Baird.