Once upon a time, a long long time ago, in a country called Greece, the government was borrowing lots and lots of money from other countries and banks. But they didn't save enough money to pay back all that debt, and they kept spending more than they could afford.
Then one day, some people realized that Greece might not be able to pay back all the money they borrowed. This made other people worry that they might not get their money back, and they stopped lending Greece any more money.
Without any more money to pay for things like schools, hospitals, roads, and salaries for police officers and firefighters, people in Greece started to get really worried. They weren't sure if they would still have jobs or be able to afford food and rent.
To try and fix this problem, the government had to ask for help from other countries and organizations like the European Union and the International Monetary Fund. But they had to do some things that made a lot of people unhappy, like cutting back on things like pensions, healthcare, and education.
This made some people angry and they protested, but others understood that the government had to try and fix the debt problem so that the country could eventually get back on track.
After many years of hard work, and some more sacrifices from the people of Greece, things started to get better. The government managed to pay back some of its debt and the country slowly became stronger again.
And that, my little friend, is the story of the Greek government-debt crisis!