Return the Seder Plate to the table. The Matzah should be uncovered throughout the Hagadah.
We were slaves to Pharaoh in the land of Egypt, and Hashem, our G-d, took us out from there with a strong hand and an outstretched arm. And if the Holy One, blessed be He, had not taken our ancestors from Egypt, we and our children and our children's children would [all] be enslaved to Pharaoh in Egypt. And even if we were all sages, all discerning, all elders, all knowledgeable about the Torah, it would be a commandment upon us to tell the story of the Exodus from Egypt. And anyone who adds [and spends extra time] in telling the story of the Exodus from Egypt, is praiseworthy.