The midseason finale was a shocking one. Kate takes Toby to meet her family, and after waking up from a nap in sweats, Toby collapses. The episode left off at the hospital with Toby's fate up in the air.
TV Guide gave a synopsis of what to expect in the return episode:
Kate struggles to cope during the aftermath of Toby's heart attack; William and Jesse grow closer, forcing Randall to become accustomed to their relationship; and Olivia unexpectedly resurfaces. In the past, Jack and Rebecca seek an affordable home in light of the news they'll be having triplets.
The season's return comes shortly after the 2017 Golden Globe Awards, where actresses Mandy Moore and Chrissy Metz were both nominated for best performance by an actress in a supporting role in a series, limited series or motion picture made for television for their roles in This Is US.