basically
The only thing I remember is that josh will take both chase and Pete to the aquarium together and he leaves both of them together i think its because he wants them to get to know each other and while he's gone a crazy dog comes to attack them and chase will i think sacrifice himself to protect pete cuz he's Josh's kid mind you he doesn't know pete is his kid yet and Josh will save them both at that moment he will tell chase that pete is his child ( I'm just telling these from memory so I might be wrong and please feel free to correct me if I'm wrong )
pls spoil me