In the Spring of 2020, the pandemic originated by the coronavirus outbreak (SARS-CoV-2), changed our lives substantially. On March 14, aiming to stop its rapid spread, the confinement of the Spanish population was imposed, lasting, in its most restrictive phase, to the end of April. In a short period of time, families and children had to adapt to a new reality, modifying their daily social routines and altering their personal relational spaces. In these circumstances, the UNDERISK group developed a new line of research focused in the analysis of the general effects of the COVID-19 crisis, and confinement in particular, on children and their families.