River Song, after years of not seeing her child, finds herself back in the time of the 12th Doctor. The temporal clues point to Antics era, Rome Antic, where she discovers that her child was raised by friends who looked after him in her absence. As she attempts to approach discreetly, she encounters an unforeseen temporal threat that jeopardizes the stability of the timeline. River must juggle family reunions and resolving this temporal crisis, all while hoping to restore the lost bond with her child.