Australia captain Michael Clarke is adamant his side have not given up on retaining the Ashes urn, as England appear to be closing in on a series victory.
The tourists were bowled out for just 60 on a disastrous day for the holders at Trent Bridge.
England then turned the screw by closing on 274-4, with Joe Root hitting an unbeaten 124 as the hosts established a lead of 214 on day one.
Australia appear to be heading for a defeat, which would see England claim the series win with a Test to spare, but Clarke insists his side can respond at Trent Bridge and keep their Ashes hopes alive.
Australia won the second Test after a fantastic first innings in which they declared on 566-8, before dismissing England for just 103 in their second innings – and Clarke wants his side to replicate that kind of display over the remainder of the fourth Test.
“The Australian way is to never give up. That has to be our attitude,” Clarke told the BBC.
“We have to come here tomorrow and bowl England out and then bat as big as we have done in this series.”
Australia will need a dramatic improvement if they are to salvage anything from the fourth Test after struggling with both bat and ball.
The tourists lost their first five wickets in just 25 balls and none of their top-seven batsmen managed more than 10 runs.
Australia are 15.00 to win the fourth Test, a draw is 17.00 and England are 1.04.