The MRU, led by Mike Vlasek, is on the front line of a vast range of medical disasters, including an explosion at a winery and a devastating bus crash.

The series ends with the ED and MRU teams sharing an emotional farewell dinner in honour of long time All Saints nurse, Von Ryan.

Along with the addition of the new "department" the show was also renamed to All Saints: Medical Response Unit, the introduction of Mirrah Foulkes and the new MRU proved to lift the ratings substantially, but then levelled out at where they were prior to the revamp.

[1] In June 2009, after months of rumours that the cancellation of All Saints was imminent, a spokeswoman from the Seven Network informed The Daily Telegraph that the episode order had been trimmed.

Many people still argue as to why the MRU was introduced in the first place or should have been removed instead of axing the show if the network was wanting to cut costs.