Their Brother Lost in Space is a 55-episode family / cute kids title from ReelShort. The available metadata points to family bonds, parent-child reveals, and protective romance. In source metadata, the setup centers on In Their Brother Lost in Space movie, Timothy, adopted by the wealthy Snyder family, grows up devoted to his three older sisters — until the day their biological son, Matthew, returns and turns them against him with... Dramora adds discovery signals for high-drama, romantic pacing, normalized story tags, public popularity context, and an official-watch handoff so viewers can compare it without relying on playback mirrors. More ›