On Saturday, November 8, 2014 1:05:33 AM UTC-5, wrote:
> I have a couple of bottles of sparking wine in my fridge, which has been there
> for a couple of years. It's been stored upright, but it's corked with plastic
> stoppers. I'm expecting it to still "pop" if I open it but would the contents
> still be good or safe to drink? Thanks.

It will definitely be safe to drink. Sparkling wines with plastic corks are generally regarded as "drink as soon as possible" but if seal intact I assume it's not going to have changed that much. But of course who knows how long it had been bottled when you put in fridge? It might be oxidized or have lost its fizz, but it will be safe to drink. Tasty might be an issue, though. Only way to know is to open (and it's definitely not getting better!)