They go out and chase and the kid get lost, then chase says something about the kid and joshua says its yours (or something like that i dong remember)
not much left really, chase meets Pete a few times and tries to make a good impression. I'm pretty sure Pete figures out chase is his dad before chase figures it out himself. there's another action driven plot line near the end but it gets solved fast so its whatever. happily ever after and another kid
Adding to this spoiler there's even a conversation where Chase tells Joshua his resolve to be Pete's another dad even though he thinks Pete not his because he is Joshua's son
Pls give me a spoilers