It’s an old gamers joke. Let’s assume none of the PCs ran off with the ring the very second it was discovered. What would happen next? The chances are someone would want to use the Giant Eagles to fly into Mordor, fly over Mount Doom and drop that pesky ring into the lava.
The BrotherHood Workshop have thought through the likely chain of results and animated it all with LEGO. The result? Turns out Gandalf was smart enough to avoid a doomed Giant Eagle flight in the first place. One does not simply fly into Mordor.