In the last couple of years, Europe has been facing a sudden and great wave of migrants from the Middle East countries (especially from Syria and Afganistan). The challenges that have been put before receiving countries demand a high level of political, economic, and educational functioning that has been recognized as one of the key components of successful refugee integration into the society. The Republic of Croatia is one of the countries that found itself in the way of a migrant wave and it has played a significant role in the transition, and the reception of migrants and refugees. This paper represents a case study of Croatian educational system in crisis situation as stated above. In the context of migrant and refugee education, analysis of Croatian educational system has been conducted with the aid of 4A Katarina Tomaševski scheme, and a special focus on system adaptability. For the purpose of this research interviews were conducted with teachers from schools that have accepted the largest number of refugee and migrant children that are in the process of seeking asylum in the Republic of Croatia. The interview questions referred to specific educational situations that teachers encounter with migrant children. Also, a comparative analysis of measures and activities conducted by receiving countries was made, with regard to the migrant reception and integration in their education system. In the final part of the paper recommendations for improvement of adaptability of educational system are proposed.