The episode picks up where last season's cliffhanger left off - Brennan kidnapped by her former assistant, Zack Addy, as Booth and the rest of the lab desperately search for her. Brennan's rescue is, however, just the beginning of their problems.

When the body of an old man is found in an acid dump site, the team becomes enmeshed in retirement home drama. As they explore the case, talk of marriage and kids begins to dominate the conversation back at the lab.