Rebuilding a stale marriage, Martin and Linda face an unexpected challenge when Martin is bitten by a vampire, leading them to test vampire theories and protect their town from the undead.

居住在花谷街的一对夫妻，察觉到社区里发生了一些细微的变化。当一场剧烈的雷暴袭来后，他们连同他们的孩子和邻居醒来发现自己竟被“传送回了史前时代”，身边被恐龙和其他野生生物包围。