It's the Youth Olympic Games in Argentina and Amelie has been selected as the only female artistic gymnast to represent Great Britain. Great news for Amelie but this means she will be leaving best friend and training partner Phoebe behind. However, Phoebe is her number one supporter and is busy making sure Amelie gets the send-off she deserves. Meanwhile, In the Gym Stars challenge, Nile Wilson and Luke Strong take on the Acro squad to see who’s the ultimate in handstand trickery!