The dysfunctional Walker clan rallied around youngest sibling Justin after he returned from combat with a serious leg wound that contributed to a relapse with prescription painkillers, but there’s been a world of psychic pain to go around for the other characters as well. Kitty’s husband, Sen. Robert McCallister, has ended his once-promising presidential bid, but their marriage is strained by Kitty’s nagging desire for motherhood. Kevin, however, has taken a big step toward emotional maturity via a commitment ceremony with his longtime boyfriend, chef Scotty Wandell. Less happily, Sarah’s marriage to Joe is over following his fleeting dalliance with Rebecca — who, it turns out, isn’t a lost Walker sibling after all. Meanwhile, mom Nora is stunned on at least two fronts: Her brother, Saul, just came out of the closet, and apparently her late husband, William, has a long-lost illegitimate son, Ryan, out there somewhere.