Sonne started off in Snowbelle City, Xiav started off in Laverre City. While Kaxo was building a garrison around Snowbelle, Ryuka fought his father to inherit his family's Mega Stone and won, while Richard found his own Mega Stone in the cave where you fight Mewtwo in X and Y. After that, Kaxo, Ryuka, and Richard all went to Dendemille Town while Charred's Sonne character, Ordin, was sent to Santalune City. Kaxo got his own Mega Stone and is now going to Lumiose City with Ryuka and Richard. I suspect Ordin is going to Lumiose soon as well. Eris is likely going to Lumiose to try and take it for Xiav while Charred's Xiav characters are heading for the now Sonne protected Dendemille Town.
That sum up everything enough for ya?