I think that would be pretty simple and straightforward, if they wanted drama they'd have someone switch sides or a couple of characters do that, a kid fighting against the parent and such...or one of the kids fighting against the others...
Crazy I didn't see it before
Justin the Janitor
Sir Justin
Shining Knight!
My idea is that Icicle won't pass the first season. But I don't think the JSA is gonna kill him, I think he's gonna be betrayed by someone from his team who will pin it on the JSA. That would give a good cause for Icicle Jr wanting to avenge his father.
Hehe, as others have said, that was strictly to save his own skin. Sand sought to use that time to reach Junior to convince him to change, and he laughed Sand off.
I'd also point out that in the comics, Junior and Senior never really knew one another, and hated the other. That dynamic certainly hasn't carried over.