Resumen:
The purpose of this study is to investigate the Avalanche Escola de Missões
Urbanas Underground and their educational relevance for those who are engaged with the
underground Christian urban tribes and sectors of the institutional Church that wants to
reach this segment of society. The identity of the School and its diaconal and missiological
proposals were analyzed with the help of the theoretical framework of the counterculture,
through the rise of the underground movement and linking the historical account of the
School to the underground Christian movement. The theoretical references of Practical
Theology, namely, Jesus Table Fellowship and Mission as Com-passion, offered the
basis for the discussion of the concept of solidarity. By linking the pedagogical project of
the School with the theoretical framework of the Pedagogy of Solidarity, inspired in Paulo
Freire, the concept of solidarity is shown interacting with the theoretical references of the
Jesus Table Fellowship and Mission as Com-passion.