YOLO

The gang travel 300 million years back in time using Lucas's time machine, where Sarah tries to rescue the Australian megafauna from an impending comet using skills she's learnt from a self-help guide.

On a quest for a tale of familial lore, Lucas seeks out the story of how Sarah's parents met and hears a ripping yarn of fair maidens and reckless bravery set in Ye Olde Wollongong.

Sarah is kidnapped by bees whilst tending to her flowering garden and taken to their honey castle where she is made Empress. Rachel and Lucas come to the rescue, only to find that she is violently drunk on power. And honey drugs.

Sarah posts a picture of her garden that makes her an overnight internet sensation and Rachel's jealousy drives her into the arms of dead Mega-Bilby. Can the girls ever reconcile? Find out in this extra-long season-ending spectacular.