This article explores the ways in which Mexican transmigrants in the USA discursively construct national identities in relation to the mediated message of a television advertisement for an English-language self-study program marketed to Spanish speakers, called "Ingles Sin Barreras." Using narrative analysis of the advertisement and critical discourse analysis of a focus group, the author considers the ways in which identities and ideologies of language and language learning come to be intertwined and circulate across national boundaries. (Contains 7 figures and 5 notes.)