Catch up TV on M.I. High. Watch the latest and all other episodes of M.I. High now online, broadcasted on ABC3. Catch up on your favorite ABC3 TV show: M.I. High. Replay tv on its best! The action-packed teen spy series is back with all-new, top-secret adventures and a brand-new generation of highly skilled undercover agents ready to take on the enemies of the 21st century. CAST: Sam Strike.