Eventually, it was settled in favour of the Devon club with a goal worthy of winning any game - a blistering back-hander two minutes from the end by Samantha Capparelli.
Liverpool had edged into an 8-7 lead in the final period with a goal by Molly Boniface-Ashton. But Devonport equalised with seconds thanks to Bethany Ward (pictured - by Trevor Hyde) - before Capparelli struck with just a second remaining on her team's 30 seconds of possession.
Penguin Rockhoppers picked up their first win of the season - 7-2 against Sunderland. Leeds Hammerheads and Polytechnic drew 6-6; then Iceni claimed their second point of the season in a 7-7 draw with Sunderland.