Theo Poulos, a beloved character in "Home and Away," met a tragic fate when he was killed in a hit-and-run incident. This happened after he heroically saved his girlfriend Lacey Miller from being hit by a speeding car driven by Councillor Craig Wendell. Theo's death was a significant and emotional moment on the show, leaving fans heartbroken and marking the end of Matt Evans' role as Theo. The storyline unfolded following the wedding of characters Cash and Eden, and the aftermath of Theo's death has been a major focus on the show since then.