Our portion tells the story of Jacob and Esau, from birth through their famous feud. It also includes Isaac’s experiences in the land of Gerar, where he re-digs the wells of his father.
The Portion of Toldot

וְאֵלֶּה תּוֹלְדֹת יִצְחָק בֶּן־אַבְרָהָם אַבְרָהָם הוֹלִיד אֶת־יִצְחָק׃ This is the story of Yitzchak, son of Avraham. Avraham begot Yitzchak. וַיֵּלֶךְ עֵשָׂו אֶל־יִשְׁמָעֵאל וַיִּקַּח אֶת־מָחֲלַת בַּת־יִשְׁמָעֵאל בֶּן־אַבְרָהָם אֲחוֹת נְבָיוֹת עַל־נָשָׁיו לוֹ לְאִשָּׁה׃ So Esau went to Ishmael and took to wife, in addition to the wives he had, Mahalath the daughter of Ishmael son of Avraham, sister of Nebaioth.