In the main part of his video, IM Lawrence Trent focuses on the continuation 4...exd4 5.0-0, analysing Black's main options 5...Bc5 and 5...Nxe4. The final part deals with the modern variation - 5.e5 d5. His conclusion is that Black should not be afraid of the resulting sharp positions, given the fact that he is theoretically well prepared and knows precisely what he is doing.
Below we have summarised the variations that IM Trent shows in his video. Play through variations, add your own moves and use the assistance of the engine to help you analyse the resulting sharp positions.