Nine captures Shadow in Sonic Prime
1 part Ongoing Instead of Shadow being stuck off-screen fighting robots while he is waiting for Sonic in season 3, he is captured by Nine. We get more insight into what Shadow was thinking in terms of how he feels about Nine, and what he believes needs to be done to fix things. And we get more of Nine being evil, hurt, and angsty.
No major plot changes, fits right into the storyline.