[s4e22] The Vanishing (2) Apr 2026

This finale was a love letter to long-time fans. Seeing return provided a perfect full-circle moment for Douglas, who had to face the literal ghost of his past.

Series Finale: The Vanishing (Part 2) — A Bionic Goodbye The journey that began with three bionic teens in a basement has officially come to an end. "The Vanishing" (Part 2), the series finale of , aired as the 22nd (and 26th overall) episode of Season 4 on Disney XD. It was an emotional rollercoaster that brought back familiar faces and raised the stakes to their absolute limit. Plot Recap: The Ultimate Showdown [S4E22] The Vanishing (2)

The episode picks up immediately after the academy students vanish following a supposed "operating system upgrade". We quickly learn this was the work of , who has rebuilt Marcus , Douglas's android son, piece-by-piece. This finale was a love letter to long-time fans