In the CBS series’ sophomore finale, the titular Joan learned that charming, dot-com millionaire Ryan also talks to God — except he has a sinister agenda.

Speaking of sinister agendas, CBS cut Joan off from God and everyone else weeks later.

https://tvline.com/lists/cancelled-tv-shows-cliffhangers-series-finales-endings-hannibal-agent-carter/joan-of-arcadia-cancelled-ending/