In "Career Days," flashbacks reveal that young Randall has been deliberately underperforming in school for years, hiding exceptional math ability so he won't stand out from Kate and Kevin — a quiet self-erasure Jack's insistence on treating all three kids identically inadvertently created. In the present, adult Randall spirals over an identity question raised by William's musical life, then bombs a career-day piano performance before William reframes the whole thing. Kate starts a new job as personal assistant to a wealthy philanthropist, gets drawn into a fraught dynamic with the woman's teenage daughter, and becomes the first person to name her estrangement from Rebecca plainly. Kevin, still unable to reach his grief scenes in rehearsal, is taken to a stranger's memorial by Olivia and breaks open — the first time in the present timeline he spea ...