A couple of weeks ago, Dom, Meg and Randell met the Forbes family. Ka'iulani Forbes is just three years old and is struggling with a rare form of cancer called Neuroblastoma.
Dom came up with the idea to run 5 marathons in 5 days to help raise money for Ka'iulani and her family to help them cover the treatment - which will cost over 260K.
DMR checked in with Moana to get an update on how Ka'iulani is doing with the first couple of weeks of her treatment in Barcelona - ahead of Dom's big run.
If you can spare any money for this family, head over to their Givealittle page here.