1: Meet Alexei Navalny, prominent critic of Russian President Vladimir Putin.

2: Navalny born in 1976 in Russia, studied law before turning to activism.

3: Putin's nemesis, Navalny gained fame for exposing corruption in Russia.

4: Navalny survived poisoning in August 2020, blamed on Russian government.

5: After recovery in Germany, Navalny returned to Russia and was arrested.

6: Putin's regime charges Navalny with violating probation, sparking protests.

7: Navalny sentenced to 2.5 years in a penal colony, drawing international outcry.

8: As Putin tightens grip, Navalny remains a symbol of opposition in Russia.

9: Despite risks, Navalny continues to speak out against Putin's authoritarian rule.